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The 21 largest cruise ships in the world.

Book your next cruise vacation on one of these floating megaresorts.

The Largest Cruise Ships in the World

Courtesy of Royal Caribbean International

With every year comes bigger and grander cruise ships.

Just when you think cruise ships can't get any larger, a major cruise line unveils yet another longer, taller and grander state-of-the-art vessel – with the capacity to carry the population of a small town. To put the size of today's megaships into perspective: They often stretch three times longer than a 120-yard football field, and some feature nearly two dozen decks or measure more than 215 feet wide.

So, if you're looking for a vacation aboard a large-scale vessel, consider booking a voyage on one of the biggest cruise ships in the world. With cutting-edge technology and entertainment, world-class dining, and endless attractions and activities for cruisers of all ages, you may not even want to leave the ship. Here are the biggest cruise ships, arranged by gross tonnage.

• 1. Royal Caribbean Icon of the Seas
• 2. Royal Caribbean Utopia of the Seas
• 3. Royal Caribbean Wonder of the Seas
• 4. Royal Caribbean Symphony of the Seas
• 5. Royal Caribbean Harmony of the Seas
• 6. Royal Caribbean Oasis of the Seas
• 7. Royal Caribbean Allure of the Seas
• 8. MSC World Europa
• 9. Costa Smeralda
• 10. Costa Toscana
• 11. P&O Cruises Arvia
• 12. AIDAcosma
• 13. P&O Cruises Iona
• 14. AIDAnova
• 15. Carnival Jubilee
• 16. Carnival Celebration
• 17. MSC Euribia
• 18. MSC Virtuosa
• 19. Carnival Mardi Gras
• 20. MSC Meraviglia
• 21. Norwegian Encore

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Royal Caribbean Icon of the Seas

Length: 1,198 feet

Width: 213 feet

Gross tons: 250,800

Maximum number of passengers: 7,600

Icon of the Seas will be the largest cruise ship afloat when it debuts in January 2024. The next-level megaship is Royal Caribbean 's first Icon-class vessel and the first of three ships powered by liquefied natural gas, or LNG, which is considered a more sustainable alternative to other fuel options. The ship will have 2,805 staterooms and carry up to 2,350 crew. There's no end to the fun with eight unique neighborhoods, including the new Surfside: a stay-all-day space designed specifically for families.

Other features on the ship include seven pools, nine whirlpools and six record-breaking waterslides. There are also more than 20 new dining venues, such as the swanky Empire Supper Club, which features an eight-course tasting menu; the AquaDome Market, the line's first food hall; and sushi restaurant Izumi in the Park. Cruisers will also find other international cuisine, including Japanese, Mexican and Italian fare, as well as The Lemon Post, the Surfside Eatery and Pier 7 in the Surfside neighborhood.

Read: The Newest Royal Caribbean Ships

Royal Caribbean Utopia of the Seas

Length: 1,188 feet

Width: 211 feet

Gross tons: 236,860

Maximum passengers: 6,788

Royal Caribbean's first LNG-powered Oasis-class ship will sail its debut voyage in July 2024. The new ship will have 2,834 staterooms and up to 2,290 crew members, as well as eight neighborhoods to keep passengers entertained. Ten complimentary dining venues include the line's new food truck concept, The Spare Tire, which serves up handheld eats on the pool deck. The ship will also feature sloping beach-entry and resort-style pools, plus three Lime & Coconut bars on the outdoor deck.

In total, there are more than 40 dining options, bars and lounges on Utopia of the Seas. Many of Royal Caribbean's specialty dining and bar favorites are returning, such as Chops Grille, Giovanni's Italian Kitchen & Wine Bar, Rising Tide Bar and Vue Bar. Guests will also find familiar entertainment offerings with rock climbing walls, the AquaTheater, Splashaway Bay, laser tag, mini-golf, the Sports Court, Studio B and much more. With two casinos, five pools and a visit to private island Perfect Day at CocoCay, you'll never run out of things to do.

Read: The Top New Cruise Ships

Royal Caribbean Wonder of the Seas

Michel Verdure | Courtesy of Royal Caribbean International

Gross tons: 235,600

Maximum passengers: 7,084

Royal Caribbean's current largest ship at sea, Wonder of the Seas , first set sail in March 2022. The Oasis-class vessel has 2,867 staterooms and carries as many as 2,204 crew members. While you may get lost on this ship, you'll never be bored. Features include eight unique neighborhoods – such as Central Park, the Boardwalk, and the new Suite Class neighborhood, an exclusive space for suite guests.

Take advantage of the AquaTheater, an outdoor live entertainment venue with a 30-foot diving platform and incredible ocean views. Wonder Playscape is an underwater-themed outdoor space for kids filled with slides, climbing walls, games and more. You can also enjoy a few of Royal Caribbean's Oasis-class favorites, such as the FlowRider surf simulator, the rock climbing wall or laser tag at the Battle for Planet Z. If you dare, head into the Ultimate Abyss: Billed as the tallest waterslide at sea, it towers 150 feet above sea level and features an exhilarating 13-second ride through 10 stories of dark, winding tunnels.

When hunger strikes, dine at your pick of more than 20 complimentary and specialty restaurants, including the new Mason Jar Southern Restaurant & Bar. If you're craving a cold beer, a cocktail or a cup of Starbucks coffee, you'll have roughly a dozen bars and lounges at your disposal.

Read:  The Top Party Cruises

Royal Caribbean Symphony of the Seas

Width: 215.5 feet

Gross tons: 228,081

Maximum passengers: 6,680

Royal Caribbean's Symphony of the Seas , another Oasis-class ship, debuted in April 2018. This ship features 2,759 passenger staterooms and accommodates 2,200 crew members. There are seven distinct neighborhoods, four pools, roughly 20 restaurants (about half of which are specialty venues), and about a dozen bars and lounges. The ship even boasts two robotic bartenders that whip up drinks at the Bionic Bar.

Adults can enjoy Broadway-style shows in the onboard theaters and major international sports games at Playmakers Sports Bar & Arcade. Meanwhile, kids can cool down at the Splashaway Bay water park, soar on a zip line nine decks high through the Boardwalk neighborhood, try out rock climbing or attend a show at the AquaTheater.

Read:  Royal Caribbean vs. Carnival

Royal Caribbean Harmony of the Seas

Gross tons: 226,963

Maximum passengers: 6,687

Another Oasis-class ship, Royal Caribbean's Harmony of the Seas has been sailing since May 2016. The vessel features 2,747 staterooms and up to 2,200 crew members. Cruisers have plenty of places to dine thanks to eight complimentary venues – including the main dining room and Windjammer Marketplace, a globally inspired buffet – as well as nine specialty restaurants serving everything from burgers and shakes to Italian fare. The Boardwalk, one of the ship's seven neighborhoods, is a favorite spot for cruisers; it contains casual eateries, retail shops and carnival games.

Harmony of the Seas also has Splashaway Bay, the Ultimate Abyss waterslide and a trio of slides called The Perfect Storm. In the evening, don't miss a pre-dinner cocktail at the Rising Tide Bar, which offers a ride between the Central Park neighborhood and the Royal Promenade with dazzling skylight views. Sit back and sip your drink while the entire bar slowly floats between the decks.

Royal Caribbean Oasis of the Seas

Simon Brooke | Courtesy of Royal Caribbean International

Length: 1,187 feet

Width: 215 feet

Gross tons: 226,838

Maximum passengers: 6,771

Royal Caribbean's Oasis of the Seas was the largest cruise ship in the world when it was launched in 2009. The line's debut Oasis-class ship is nearly five times bigger than the Titanic by gross tonnage; it has 2,801 staterooms and carries 2,109 crew members.

Oasis of the Seas was reimagined in 2019, with many added amenities that are on newer Oasis-class ships, such as FlowRider simulators, the Perfect Storm waterslides, the Ultimate Abyss and Playmakers Sports Bar & Arcade. Across the ship's seven distinct neighborhoods, you'll also find state-of-the-art technology such as VOOM, billed as the fastest internet connection on the high seas – plus exciting live performances and theater productions, laser tag, escape rooms and more.

Royal Caribbean Allure of the Seas

Gross tons: 225,282

Maximum passengers: 6,826

Embarking for the first time in 2010, Allure of the Seas was Royal Caribbean's second Oasis-class vessel. The ship underwent a refurbishment in 2015. Allure of the Seas has 2,748 staterooms and 2,054 crew. Onboard highlights include seven neighborhoods, four pools, and several whirlpools and hot tubs, plus more than 20 dining venues and too many bars and lounges to count.

There are also plenty of entertainment options for guests of all ages, including an ice skating rink, the Sports Court, a nine-deck-high zip line, two rock climbing walls and two FlowRider simulators (a Royal Caribbean favorite). Kids will especially enjoy the interactive H2O Zone Water Park. Adults on this ship will appreciate Broadway productions like "Mamma Mia!," aerial acrobatic performances in Oceanaria (an original AquaTheater production) and '70s disco dance parties. If you find yourself on board for business reasons, rest assured that the ship's conference facilities can host as many as 1,394 guests.

Find a Royal Caribbean cruise on GoToSea.

MSC World Europa

Courtesy of MSC Cruises

Length: 1,093 feet

Width: 154 feet

Gross tons: 215,863

Maximum passengers: 6,762

MSC World Europa was one of the most anticipated new cruise ships when it launched in December 2022 as the first vessel in the line's MSC World-class fleet. It's also the first LNG-propelled ship by MSC Cruises , reaching a maximum cruising speed of 22.7 knots.

The ship's futuristic interior and exterior design features a 341-foot-long promenade. Half the promenade is covered with the Meraviglia-class LED sky screens, while the other half is open-air and offers ocean views. MSC World Europa features 2,626 staterooms and can house 2,138 crew members. As a special touch, each passenger deck is named after an international city, including London, Paris, Lisbon and Rome.

The ship is divided into distinct areas, with a quiet zen district for adults and a family zone that has bumper cars and roller skating. At the fleet's largest onboard water park, younger cruisers will find a twisty, stainless steel tunnel slide towering 11 decks high at the center of the ship. Luna Park Arena, the ship's 300-seat multifunction entertainment venue, can accommodate almost any performance or event.

When you're exhausted from all of the action, grab a bite to eat at one of 13 restaurants or a drink at a selection of bars and cafes. Then, take time to relax and unwind with a signature treatment at the Balinese-inspired MSC Aurea Spa. For an all-inclusive VIP experience during your voyage, book stateroom accommodations in the MSC Yacht Club. This exclusive part of the ship boasts premium suites, a separate pool, a private restaurant and lounge, butler service, and other amenities.

Costa Smeralda

Courtesy of Costa Cruises

Length: 1,106 feet

Width: 138 feet

Gross tons: 185,000

Maximum passengers: 6,554

Costa Smeralda was the first of the two Excellence-class vessels in the Costa Cruises fleet. The vessel debuted in 2019 as the Italian cruise line's largest ship to date. It was also the line's first vessel to use LNG power at sea and in port. The ship has 2,612 staterooms and can carry as many as 1,678 crew members.

Cruisers will never go hungry or thirsty, thanks to the 11 restaurants and snack bars plus 19 bars and lounges on Smeralda . One of the most notable dining venues on board is Archipelago, which serves innovative cuisine created by three world-renowned chefs. If you're interested in culinary pursuits, join other passengers for a cooking class at sea in the Food LAB. When it comes to entertainment, centrally located Colosseo – modeled after the piazzas across Italy – is the place to go for socializing and live performances. What's more, the ship also has 13 pools and hot tubs, an aqua park, the Beauty Spa Solemio, and the Squok Club for kids ages 3 to 11.

Costa Toscana

Costa Toscana, Costa Cruises' newest flagship and the second Excellence-class vessel in the fleet, set sail on its debut voyage in March 2022. Similar in size and passenger capacity to Costa Smeralda, Toscana is also LNG-powered. This vessel has 2,663 staterooms, and there can be up to 1,678 crew members on board.

Similar to Smeralda, Colosseo is the centerpiece of Toscana; you'll find live entertainment and themed bars in this area. There are 11 restaurants and snack bars plus 19 bars and lounges on the ship. For a refreshing aperitif with a view, head to the Aperol Spritz Bar, which features special beach cocktails. Another dining highlight is Sushino at Costa, the line's new sushi bistro. After dinner, take in unparalleled views of the sea along the Volare Skywalk, the highest point of the ship, which towers more than 200 feet above sea level.

Explore Costa Cruises deals on GoToSea.

P&O Cruises Arvia

Courtesy of P&O Cruises

Length: 1,130 feet

Maximum passengers: 5,200

Arvia joined the P&O fleet as sister ship to Iona in December 2022. It is also LNG-powered, has 2,614 cabins and carries up to 1,800 crew. The family-friendly ship offers guests many firsts, including Altitude, a new activity area with an escape room, a high-ropes experience, the Splash Valley aqua zone, the Sports Arena and much more.

Arvia has 30 bars and restaurants. New dining venues include the American-inspired 6th Street Diner and Green & Co. feat. Mizuhana, which focuses on sushi and plant-based dishes. For entertainment, plan to see the line's production of "The Official Take That Musical," an adaptation of London West End musical "The Band." Guests can also head to the dome beneath the SkyDome retractable roof for live performances, aerial displays, movies on the giant SeaScreen and DJ parties under the starry skies.

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Courtesy of AIDA Cruises

Gross tons: 184,600

Maximum passengers: 6,654

The sister ship to AIDAnova, AIDAcosma set sail in early 2022. The partly LNG-powered AIDA Cruises vessel has 2,732 staterooms and the capacity for up to around 1,500 crew members. With 17 restaurants and 23 bars and cafes, AIDAcosma offers passengers a seemingly endless number of venues to dine and imbibe. Other onboard attractions include a four-deck outdoor area, complete with an infinity pool and an expansive area for sunbathing; an indoor playground with a bouldering wall and ropes course; the Body & Soul Spa; and a 360-degree stage at the Theatrium.

P&O Cruises Iona

Length: 1,129 feet

Gross tons: 184,000

P&O Cruises' Iona, which launched in spring 2021, has the distinction of being the first LNG-powered British cruise ship. The family-friendly vessel has 2,614 cabins and carries 1,800 crew members. Iona's top features include the two-story SkyDome, a gin distillery, four pools, 10 entertainment venues, and 30 restaurants and bars offering a wide variety of food and beverage options.

With selections ranging from casual eateries to gelaterias to Indian- and British-inspired cuisine at Sindhu, you won't get bored with the restaurant choices. For an especially unique meal, dine and sip wine while watching aerial performances in the Grand Atrium at The Glass House. Or, enjoy dinner at The Limelight Club, an adults-only supper club venue featuring vocal performances and other live music. After dinner, check out the entertainment around the ship, including aerial productions in the Grand Atrium, guest and crew shows in Headliners, late night dancing in The Club House, and performances in partnership with the entertainment company Creativiva in the SkyDome.

Gross tons: 183,900

When German line AIDA Cruises' first Helios-class ship, AIDAnova, debuted in December 2018, it was the first LNG-powered cruise ship in the world. The ship is equipped with 2,626 staterooms, including the two-deck Penthouse Suite, and carries around 1,500 crew members. You won't miss this ship when it's docked in port: It features the line's signature exterior design, with bold red lips at the ship's bow and blue-and-yellow eyes on the port and starboard sides.

While on board, passengers can check out 17 restaurants, along with 23 bars and lounges; party the night away at the Beach Club; and take in live performances on the 360-degree stage in the Theatrium. When it's time to relax, head to the Body & Soul Spa, where you can book a massage, spend time in one of the hot tubs or saunas, take a dip in the private pool, and chill out on the private spa sun deck.

Carnival Jubilee

Width: 137 feet

Gross tons: 183,521

Maximum passengers: 6,631

Carnival Jubilee, as sister ship to Carnival Celebration and Carnival Mardi Gras, will offer many of the same features and amenities as its two predecessors when it launches in December 2023. The new vessel will have 2,687 staterooms, 1,735 crew and six zones of fun. Currents and The Shores are new to Jubilee . Currents is inspired by the underworld of the ocean with mermaids and sea monsters; it's designed with new bars, restaurants, music venues and high-tech spaces, including a wave-shaped LED ceiling and six LED windows that virtually take guests under the sea. The Shores is all about the outdoors, inspired by beaches and boardwalks. Cruisers can grab a slice of pizza at Coastal Slice, a hot dog at Beach Buns and a cocktail at Marina Bar.

On Jubilee, you'll also find Carnival Cruise Line favorites such as BOLT, the first and fastest roller coaster at sea, as well as Waterworks, the onboard water park with twin racing slides, three spiraling slides and more. The line's "next-level fun" ship will also include familiar eateries and lounges like Shaquille O'Neal's Big Chicken, Guy's Pig & Anchor Bar-B-Que Smokehouse, Cucina del Capitano, Fahrenheit 555 Steakhouse and more.

Carnival Celebration

Courtesy of Carnival Cruise Line

Carnival Celebration sailed its inaugural cruise in November 2022. Carnival's second-newest ship at sea is LNG-powered and the second in the line's Excel class, with 2,687 staterooms and as many as 1,735 crew. Guests will find new attractions to enjoy on the ship, such as the partnership with the Kennedy Space Center at Space Cruisers: This program is designed for children ages 2 to 11 at Camp Ocean.

Adults can check out the new bar at Latitudes, which features specialty cocktails and outdoor scenery through the virtual windows. Celebration has a variety of complimentary dining venues, including Shaq's Big Chicken, Guy's Burger Joint and Mexican favorites at BlueIguana Cantina. There is also a selection of specialty restaurants like Emeril's Bistro 1397, Rudi's Seagrill, the Steakhouse and Bonsai Teppanyaki. For action and 360-degree views of the ocean from the top of the ship, take a spin around the track on the BOLT roller coaster.

Compare Carnival Cruises on GoToSea.

MSC Euribia

Length: 1,087 feet

Width: 141 feet

Gross tons: 181,541

Maximum passengers: 6,327

MSC Euribia, the newest MSC Cruises ship, debuted in June 2023. The line's second LNG-powered vessel – and the fifth Meraviglia-class ship – has 2,419 cabins and can carry as many as 1,711 crew members. The ship's hull features Alex Flämig's artwork "#SaveTheSea" to highlight the company's dedication to preserving the marine ecosystem.

On board Euribia , guests will find five pools and 11 dining venues, offering everything from sushi and teppanyaki to Latin American street food. There are also 21 bars and lounges, the MSC Aurea Spa, the Ocean Cay Aquapark, luxury retail shopping and more. Two additional highlights are the longest – and most impressive – LED Dome at Sea, which covers the ceiling of Galleria Euribia, and the reimagined Carousel Lounge. The beautiful, updated space features floor-to-ceiling windows, outdoor terraces and cozy seating to enjoy live entertainment, including performances by one of the largest big bands at sea.

MSC Virtuosa

Maximum passengers: 6,334

This vessel launched in 2021 as a sister ship to MSC Grandiosa , the line's other Meraviglia Plus-class ship. MSC Virtuosa has 2,421 staterooms and carries around 1,704 crew members. It offers cruisers 11 dining venues plus 21 bars and lounges. At the heart of the ship, Galleria Virtuosa houses the largest shopping area on a cruise ship, with more than 12,500 square feet of retail space. In this area, you'll also find entertainment venues, restaurants and cocktail bars. And don't forget to look up: An impressive LED dome, one of the longest at sea, spans the ceiling of the promenade.

Another highlight to check out during your voyage is the MSC Starship Club, which features Rob, the first humanoid robotic bartender on a cruise ship. The multilingual expert mixologist even tells jokes and will show you a dance move or two. After all the indoor fun, head outside for a cool dip in one of MSC Virtuosa's five pools or take a ride on the slide at the Savannah Aquapark.

Book an MSC Cruise on GoToSea.

Carnival Mardi Gras

Gross tons: 180,000

Maximum passengers: 6,465

One of Carnival Cruise Line's newest ships, Mardi Gras , debuted in July 2021. Its name honors the line's first ship, the TSS Mardi Gras, which launched in 1972. The original Mardi Gras was around 27,000 gross tons and 650 feet long – in contrast, the new Carnival Mardi Gras weighs more than six times as much and is nearly twice as long. This ship also holds the title as North America's first LNG-powered ship. It has 2,641 staterooms and holds up to 1,745 crew members.

Six themed areas each offer unique dining and entertainment experiences. For New Orleans -inspired cuisine, head to the French Quarter; there, you'll find Emeril's Bistro 1396 and The Brass Magnolia, a bar reminiscent of The Big Easy's jazz culture and Garden District. Don't miss one of the ship's top onboard attractions: the BOLT roller coaster, where riders can hit speeds of nearly 40 mph at 187 feet above sea level.

Read: The Top Themed Cruises

MSC Meraviglia

Courtesy of Port Miami for MSC Cruises

Length: 1,036 feet

Gross tons: 171,598

Maximum passengers: 5,655

MSC Cruises' Meraviglia first set sail in 2017 with an impressive 2,244 staterooms and the capacity to carry 1,536 crew members. A dozen restaurants offer a wide variety of cuisines, including a Spanish tapas bar with dishes created by a Michelin-starred chef, Japanese teppanyaki, Italian fare, fresh seafood, steaks and more. There are also 20 bars, lounges and cafes serving everything from Champagne and cocktails to ice cream and crepes.

The central highlight of the ship is Galleria Meraviglia, a 315-foot promenade with eateries, boutiques and evening parties. Nightly entertainment includes live performances and shows in the Broadway Theatre and the Carousel Lounge. Kids will find plenty to do, as well: There's an Aquapark, an F1 simulator, a flight simulator, LEGO play areas, bowling and more. When it's time to wind down, book a signature treatment at the MSC Aurea Spa.

Norwegian Encore

Length: 1,094 feet

Width: 136 feet

Gross tons: 169,116

Maximum passengers: 3,998 (double occupancy)

Norwegian Encore was built in 2019 as one of Norwegian Cruise Line 's Breakaway Plus-class ships. The vessel has 2,040 staterooms and carries 1,735 crew members. There are several complimentary culinary venues on board, including three main dining rooms, The Local Bar & Grill, the Garden Café buffet, and grab-and-go options. Specialty dining restaurants offer a variety of cuisines, from seafood to steak to Japanese teppanyaki.

When it's time for cocktail hour, 14 bars and lounges serve up everything from cold brews to fine wine and whiskey. For a pre-dinner option, head up to the Observation Lounge for panoramic ocean views. Norwegian Encore is also home to several entertainment venues featuring award-winning live shows and performances.

You'll find the most fun on the ship's top decks. First, head to the Encore Speedway race track, which takes thrill-seekers on a heart-pumping ride through high-speed curves extending 13 feet off the side of the ship. Also at the top of the vessel you'll find The Haven: Norwegian's exclusive "ship within a ship" concept boasts luxurious suites, villas and penthouses with balconies. These luxe accommodations include perks like 24-hour butler service, a concierge and a private sun deck.

Find a Norwegian Cruise Line cruise on GoToSea.

Frequently Asked Questions

The largest cruise ship currently in service is Royal Caribbean's Wonder of the Seas, at more than 235,000 gross tons. Icon of the Seas will become the largest cruise ship in the world at 250,000-plus gross tons after its launch, set for January 2024.

Carnival Jubilee, scheduled to debut in December 2023, and Carnival Celebration are the line's largest ships at 183,521 gross tons.

The line's largest ship is Disney Wish at about 144,000 gross tons. The vessel is 1,119 feet in length and 128 feet wide; it has 1,254 staterooms and carries up to 4,000 passengers and 1,555 crew.

Why Trust U.S. News Travel

Gwen Pratesi has been an avid cruiser since her early 20s. She has sailed on nearly every type of cruise ship built, including the newest megaships, paddle-wheelers on the Mississippi River, and an 18-stateroom river ship on the Mekong River in Vietnam and Cambodia. She has also cruised on a traditional masted sailing ship and on a small luxury expedition vessel in Antarctica crossing the notorious Drake Passage twice. She covers the travel and culinary industries for major publications including U.S. News & World Report.

You might also be interested in:

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• The Top Cruises on Small Ships
• The Top Gay Cruises
• Cruise Packing List Essentials
• The Top Cruise Insurance

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Largest Cruise Ships

See here the world's largest cruise ships list (including vessels under construction ) owned by the best cruise line companies . This article is also integrated with our ship dimensions , passenger capacity , and old cruise ships surveys.

CruiseMapper's list of biggest cruise ships includes all vessels with gross tonnage/volume over 150,000 GT-tons .

Each one of these behemoth ships is an engineering marvel produced by our contemporary age of fun and super technologies. Kudos to their builders and double kudos to their proud owners who have invested so much in these newbuild projects!

Note: In the following table, all links are internal (CruiseMapper) and redirect to the liner's itinerary schedule where you can compare dates and prices per person (double occupancy cabin rates).

The world's largest river cruise ship is Victoria Sabrina . The 2020-launched riverboat is China-built, owned by Victoria Cruises China and deployed year-round on Yangtze River. The vessel has the impressive volume of 17000 GT-tons, LOA length 150 m (492 ft), width 22 m (72 ft), 7 decks (5 with cabins), 270 staterooms, max capacity 690 passengers plus 195 crew/staff.

Oasis-class - biggest cruise ship in the world ever built

World's currently largest cruise ship class is produced exclusively for RCI-Royal Caribbean andin 2 sub-series - Oasis-Class (Allure OTS, Oasis OTS) and Oasis-Plus (Harmony OTS, Symphony OTS, Wonder OTS). These are sisterships from the fleet of the second- largest cruise shipping company in the world - RCCL-Royal Caribbean Cruises Ltd (as shipowner) that follows only Carnival Corporation (as shipowner).

As to vessels' dimensions, each boasts the unimaginable weight of 227,000-230,000 GT / gross tons, LOA length 362 m (1187 ft) and waterline width 47 m (154 ft). The extreme breadth is over 60 m (198 ft). As the GT is a volume measurement, the ship's actual mass (called displacement) is approx 100,000 tons (the hull alone weighs about 54,000 tons). Surpassing all passenger ship standards, building cost and all previous ship travel vacation concepts, the Oasis-class ships are currently the only passenger shipping vessels of such immense size.

Other interesting numbers are the above waterline height (72 m / 236 ft), depth (23 m / 74 ft below waterline), 16 passenger decks, draft/draught (9,3 m / 31 ft), cruising/service speed 23 knots (26 mph / 42 kph), capacity 5400 passengers at double occupancy (max 6296 / 6870) and officers+crew capacity 2165.

The world's biggest cruise ship propulsion system guarantees the perfect maneuverability by 3 rotatable Azipod thrusters (suspended under the ship's stern), each with a huge electric motor and a 6 m (20 ft) propeller. The ship offers great stability due to its enormous size. And in times of need - there are 18 lifeboats, each with a capacity of 370 people.

Oasis-Plus class is also currently the world's most technologically advanced and energy-efficient cruise vessel ever built. It is equipped with a new-generation exhaust gas cleaning system (multi-stream scrubbers) and with a hull lubrication system allowing the ship to float on air bubbles (created around the hull) thus reducing drag and increasing fuel efficiency.

Regarding cruise accommodations , this class of vessels has some of the largest suites at sea - measuring 150 m2 (over 1600 ft2, balcony included). Another signature feature is the 7 "neighborhoods" (theme-park-like areas), 5 large swimming pools, a huge casino, a full-size volleyball/basketball court, large-capacity bars, and lounges. Oasis-Plus ships additionally have waterslides (created by Aquatic Design & Engineering) and a total of 23 "water fun" areas (swimming pools, large-size outdoor jacuzzies, waterslides, flowriders/surf simulators). The stern-located Ultimate Abyss water slide is 150 ft (45,70 m) above sea level. It features 31 sections, two 360-degree circles, 27-degree slide incline, 28 m (92 ft) serpentine-like drop, 13,14 seconds average sliding time (top to bottom), around 300 small LED lights and graffiti artworks throughout.

These phenomenal ships were manufactured by STX Europe (shipyard Turku Finland / Oasis-class) and in by STX France (shipyard Saint-Nazaire France / Oasis-Plus). The new Oasis ships are 2,15 m (7 ft) longer.

Biggest Carnival cruise ship - "Carnival Pinnacle" class

Watch this amazing YouTube video about the "Carnival Pinnacle cruise ship". The project was designed by the Italian shipbuilder Fincantieri as their biggest ever passenger ship - GT tonnage 200,000 tons, capacity 6000 passengers, length 380 m (1246 ft), The "Pinnacle Project" was initiated by Carnival Corporation in 2004 to tip the scales in the "Carnival vs Royal Caribbean" competition.

Carnival Pinnacle was never built as the project was officially canceled (mainly due to the vessel's incredible cost at that time). However, many of the project's elements and innovative design features were later adapted for other large-sized cruise liners built for rival companies.

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The World’s Largest Cruise Ships Sailing For Each Line (With Photos)

Over roughly the past decade cruise ships have gotten big… real big. As one line makes a ship that’s larger, carries more passengers, and offers eye-catching activities, others then play catch-up in the “arms race” to build ships that everyone is talking about.

Large ships offer several advantages over smaller ones. For one, larger ships carrying more passengers mean that each trip can generate more revenue for the cruise line.

And it’s not just cruise fare. With larger ships also packing more onboard, there is an opportunity to increase the spending of those passengers on the ships with more restaurants and for-pay activities.

Today’s mega ships also can increase the economies of scale, creating more efficiency for the cruise line. Last but not least, rolling out a ground-breaking new ship also serves as a marketing device as the vessels get major coverage, which can lead to increased buzz and bookings.

So it’s no surprise that in recent years ships have only gotten larger. Of the major cruise lines listed below, all of their largest ships were built within the last three years. With that in mind, here are the current largest ships in each fleet, as of the time of this writing.

Carnival Cruise Line: Carnival Celebration

Officially listed by Carnival Cruise Line at 183,521 gross tons, Carnival Celebration — built in 2022 — takes the crown as the largest ship in the fleet. It is just slightly larger than sister-ship Mardi Gras, which comes in at 180,800 gross tons.

So what do you get for that sort of size? Carnival Celebration measures 1,130 feet long and carries 2,687 staterooms. That gives a capacity of 6,631 passengers when at full occupancy.

Across the 15 passenger decks there are nearly 20 different places to grab a bite to eat. Activities include a complete waterpark with three slides, sport court, and even an 800′ long roller coaster that goes up to 40 mph. There are also live versions of game show classics like Deal or No Deal and Family Feud.

• Year Built: 2022
• Gross Tonnage: 183,521
• Length: 1,130 feet
• Passenger Capacity: 6,631

Royal Caribbean: Wonder of the Seas

When it comes to the largest cruise ships, Royal Caribbean takes the crown. Their Oasis-class ships are currently the biggest on the planet, with all five of the largest cruise ships in the world being part of that group.

While these ships are similar, the largest of the class (and therefore the world) is Wonder of the Seas, which first began sailing in 2022. Coming in at 235,600 gross tons and measuring 1,188 feet, the ship is about 28% larger than Carnival Celebration.

As for passengers, Wonder of the Seas can carry a staggering 7,084 when completely full in all of its 2,867 cabins. And those passengers have no shortage of things to see, do, and eat. Wonder of the Seas has more than 20 places to eat, features activities like the Flowrider standing wave, multiple pools, an AquaTheater for performances utilizing high-divers, and even a zipline across the back of the ship.

Note: When Royal Caribbean debuts Icon of the Seas in late 2023, it will take the title of world’s largest cruise ship.

• Gross Tonnage: 235,600
• Length: 1,188 feet
• Passenger Capacity: 7,084

Norwegian Cruise Line: Norwegian Encore

Norwegian Cruise Line is an outlier of the major cruise lines in that its newest ships are actually going smaller. The current newest ship is Norwegian Prima, which first started sailing in 2022. But the largest ship in the fleet is Norwegian Encore, which debuted in 2019.

Encore is part of the cruise line’s Breakaway-Plus class. The ship measures 169,116 gross tons, or about 70% of the tonnage of Wonder of the Seas from Royal Caribbean. The ship measures 1,094 feet and carries 3,998 at double occupancy. (Note that NCL provides a double occupancy figure, which is typically smaller than a full capacity figure.)

While the ship may not be the biggest in the world, it does stand out when it comes to amenities onboard. For one, it’s built with an outdoor focus, including The Waterfront — a quarter-mile outdoor promenade that brings you closer to the ocean.

Then there is Ocean Loops, an intense waterslide that takes you out over the edge of the ship (complete with clear tubes) before bringing you back in. Perhaps the most eye-catching feature is the Encore Speedway, an actual go-karting track at the top of the ship.

• Year Built: 2019
• Gross Tonnage: 169,116
• Length: 1,094 feet
• Passenger Capacity: 3,998 (double occupancy)

Princess: Discovery Princess/Enchanted Princess

Princess is well-known for offering a more luxurious experience than mass-market lines, and that typically means smaller ships. In fact, the largest ships in the fleet are smaller than what you see from other major cruise lines but are still substantial.

In this case, Discovery Princess comes in at 145,000 gross tons, which is actually a tie with sister-ship Enchanted Princess. Discovery is 1,083 feet long and boasts 1,830 cabins. At double occupancy, the ship carries 3,660 passengers, although that figure would rise when three or more are put in a cabin.

Perhaps surprisingly, the size of Princess ships hasn’t increased as drastically as seen with other lines. While Discovery and Enchanted take the crown, they aren’t that much longer as other ships in the cruise line’s Royal class. This class of ships debuted in 2013 with Royal Princess, which is just slightly smaller at 142,229 gross tons.

That said, the cruise line will welcome a new class of ship when Sun Princess debuts in 2024. This ship will measure nearly 180,000 gross tons and carry 4,300 passengers at double occupancy.

• Gross Tonnage: 145,000
• Length: 1,083 feet
• Passenger Capacity: 3,660 (double occupancy)

Celebrity Cruises: Celebrity Beyond

Celebrity is known for being a mix of luxury combined with still offering up a mega-ship with lots to experience. Case in point — its largest ship, Celebrity Beyond, ranks as one of the top 50 largest cruise ships on the planet.

This vessel, part of the cruise line’s Edge class, measures 140,600 gross tons according to the cruise line. It also boasts a length of 1,073 feet. Onboard, Beyond can hold 3,260 guests at double occupancy in its 1,646 cabins.

To give some sense of just how large cruise ships are today, Celebrity Beyond would have to increase in tonnage by about 67% to match Wonder of the Seas — the largest cruise ship at the moment.

• Gross Tonnage: 140,600
• Length: 1,073 feet
• Passenger Capacity: 3,260 (double occupancy)

MSC Cruises: MSC World Europa

Stateside, MSC is still making inroads, but it’s a major brand globally. And it also takes a special position in having the largest cruise ship in the world outside of Royal Caribbean.

The title of MSC’s largest ship goes to MSC World Europa. This massive vessel comes in at a staggering 215,863 gross tons and was launched in late 2022. It features 2,626 staterooms onboard across its 1,093 feet of length.

At full occupancy, World Europa can carry 6,762 passengers, putting it just shy of the 7,000 guest mark.

Of course, on a ship that large there can be no shortage of things to do. Surprisingly, the ship has “only” 13 dining venues but has a 340-foot promenade indoors, an 11-deck slide that takes passengers spinning down on a thrill ride, bumper cars, and seven different swimming pools.

• Gross Tonnage: 215,863
• Length: 1,093 feet
• Passenger Capacity: 6,762

Costa Cruises: Costa Toscana

A sister to Carnival, Costa is a popular cruise line in Europe and the Middle East. In fact, the largest ship in Costa’s fleet shares similarities with Carnival’s largest class of ships that include Celebration and Mardi Gras.

In this case, the LNG-powered Costa Toscana is roughly the same size as Costa Smeralda. The ship was built in 2021 by Meyer Werft, coming in a 185,010 gross tons. That’s roughly the same size as Carnival Celebration. 

All told the ship measures 1,105 feet (337 meters) and can carry up to 6,554 passengers when completely full. Those passengers stay in a staggering 2,612 cabins. 

• Year Built: 2021
• Gross Tonnage: 185,010 
• Length: 1,105 feet
• Passenger Capacity: 6,554

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The 20 Biggest Cruise Ships in the World in 2023

By: Author Carrie Ann Karstunen

Posted on Published: March 1, 2022  - Last updated: January 6, 2023

Cruise ships have been getting bigger—and adding lots of attractions that were unheard of just a few years ago. To help you pick which megaship is right for you, I’ve rounded up the 20 biggest cruise ships in the world in 2023.

Along with a ranking of the top 20 cruise ships by size , I’ve included important stats and unique features for each ship. If you’re considering sailing on one of the biggest cruise ships in the world, you’ll want to read this guide before you choose!

How do we determine the size of cruise ships for comparison?

Cruise ships can be measured by a variety of factors. You might assume that a ship’s size is determined by its length, weight, or even its passenger capacity.

But the size of a cruise ship is generally determined by gross tonnage —and (confusingly) that’s not a measurement of weight!

Gross tonnage, or GT, is a measure of the ship’s internal volume . To calculate GT, first a ship’s volume is calculated by measuring from keel to funnel to the outside of the hull framing. That number (in cubic meters) is then run through several mathematical formulas to determine GT. (I won’t go into all of that here, but if you’re interested the US Coast Guard has a simplified guide to measuring gross tonnage ).

The world’s 20 largest cruise ships in 2023

Currently, the top 20 biggest cruise ships have four sets of ties in the rankings, all between sister ships that share the same cruise line and class. So although we’ll start our list at #16, there are twenty ships in total!

Cruise fans will notice there are several new ships on the list this year. Have any of these newer ships bumped your favorites down in the rankings? Read on to find out!

16. (tie) MSC Seascape

• Cruise line: MSC
• Year built: 2022
• Gross tonnage: 170,412
• Length: 1112 ft / 339 m
• Max. beam: 135 ft / 41 m
• Staterooms: 2270
• Max. passengers: 5877
• Passenger decks: 15

Just making this year’s list of the world’s 20 largest cruise ships, MSC Seascape is tied for #16. The second Seaside EVO class ship launched by MSC Cruises in just over a year, Seascape features a glam New York City vibe.

The ship’s four-story Atrium is at the heart of the action on board, and boasts a sparkling staircase set with 10,000 Swarovski crystals—the perfect spot for a photo op on formal nights !

But MSC Seascape isn’t all glitz and glamour—the family-friendly ship offers 13 pools and water features and more than 140,000 square feet (13006 m²) of public outside space. Kids will love Pirates Cove Aquapark , a play space with slides, a rope bridge, and plenty of water sprayers and dumping buckets to beat the heat.

Seascape is also the first ship to feature the new thrill ride Robotron , a robotic virtual rollercoaster ride perched on the top deck.

Foodie guests on MSC Seascape will enjoy the ship’s eleven restaurants, including a massive Market Place Buffet and several specialty dining venues grouped together at Chef’s Court .

Related: MSC Cruises Launches MSC Seascape in New York City

16. (tie) MSC Seashore

• Year built: 2020 (launched 2021)
• Max. beam: 134.5 ft / 41 m

Almost identical to her sister ship Seascape , MSC Seashore is tied for #16 on the list of the largest cruise ships. The first in the EVO subclass of MSC’s Seaside class ships, Seashore and her sister are larger than other ships in their class and offer expanded outdoor spaces.

As an EVO ship, MSC Seashore offers improved technology to increase efficiency and reduce her carbon footprint. The energy-efficient equipment includes an advanced wastewater purification system and Safe Air , a new sanitation system that eliminates viruses and bacteria.

Seashore was purpose-built for the American market, but still offers the European flair that MSC is famous for. Guests can enjoy a taste of Italy at the ship’s Venchi 1878 gelato bars , offering twenty flavors of the decadent frozen treat in flavors like tiramisù and stracciatella.

MSC Seashore also features a gorgeous aft infinity pool—one of the largest at sea—with luxurious submerged sunbeds. The spot is a tranquil adults-only oasis by day, but it comes alive in the evening as the setting for the always-popular Silent Disco .

15. (tie) MSC Bellissima

• Year built: 2019
• Gross tonnage: 171,598
• Length: 1,036.2 ft / 315.83 m
• Max. beam: 141 ft / 43 m
• Staterooms: 2,217
• Max. passengers: 5,686
• Passenger decks: 14

Tied for the fifteenth spot in the list of the world’s largest cruise ships, MSC’s Bellissima is as tall as thirteen double-decker buses!

Perfect for a family cruise, Bellissima offers a wealth of kids’ activities for children aged one through seventeen. Parents can track kids’ whereabouts on board via an RFID bracelet synced with MSC’s app. For adults who want to enjoy a leisurely meal, there’s the Happy Dinner program where the little ones are escorted to the kids club as soon as they finish eating!

MSC Bellissima is home to a thrilling Grand Canyon-themed waterpark with three waterslides—two racing tubes as well as a champagne bowl-style slide. The younger set will love the Aquaplay spray area, and guests of all ages can climb the Himalayan bridge, a rope course that crosses the ship high above the water.

Guests aboard Bellissima also have access to an electronic cruise assistant, similar to Siri or Alexa. A first in the cruise industry, Zoe —who speaks seven languages and adapts to each passenger’s preference—provides information and help booking shows, spa treatments, and shore excursions, as well as notifications of events and promotions.

15. (tie) MSC Meraviglia

• Year built: 2017
• Staterooms: 2,244
• Max. passengers: 5,655

When MSC’s Meraviglia entered service in 2017, she was the sixth-largest cruise ship in the world—but has since fallen to #15, tied with her newer sister ship Bellissima .

The namesake of the Meraviglia class of cruise ships, she was the first to offer an expanded dining experience with fourteen restaurants, including a whopping four complimentary main dining rooms. Celebrity chef Carlo Cracco was enlisted to improve the quality of the ship’s cuisine.

On Meraviglia entertainment options abound—the Broadway Theatre hosts six unique shows each cruise, along with the Carousel Lounge where you can experience Cirque du Soleil at sea. The crew also puts on an impressive amount of activities and events, so there’s always something to do on a sea day .

The ship’s Amusement Park has a full-size bowling alley, 4-D cinema, F1 simulators, an arcade, as well as a sportplex that becomes a disco spot for young cruisers in the evening.

14. (tie) MSC Virtuosa

• Year built: 2020
• Gross tonnage: 181,541
• Length: 1,087.4 ft / 331.43 m
• Max. beam: 160 ft / 50 m
• Staterooms: 2,421
• Max. passengers: 6,334

MSC’s ship Virtuosa , built in 2020, is one of the newer offerings by the Swiss-Italian cruise line and is tied for number fourteen on our list of the world’s biggest cruise ships.

Virtuosa offers five pools in total, plus a water park with three waterslides, so water babies of all ages can spread out and enjoy the fun. The pools can accommodate over a thousand guests at a time!

If relaxing with a cocktail is more your style, stop by and see Rob the bartender at Starship Club . He’s the first humanoid bartender at sea, and speaks six languages!

Cruisers can also wander the Galleria Virtuosa —the pretty indoor promenade with restaurants and shops features an arched ceiling with the longest LED dome at sea , presenting an ever-changing light display.

14. (tie) MSC Grandiosa

• Staterooms: 2,632
• Max. passengers: 6,761

Tied for number 14, Grandiosa was the first vessel in MSC’s Meraviglia-Plus class , later joined by her sister ship MSC Virtuosa .

With 200 more staterooms than previous MSC ships, Grandiosa has expanded the number of accessible cabins on board, and added groups of up to three connecting staterooms as well as new family balcony cabins. Some spacious family staterooms can sleep up to twelve!

Grandiosa also has some innovative environmental features, including systems to reduce nitrogen oxide emissions by 80%, and sulfur emissions by 97%. She has a fuel-efficient hull and can run on shore power when docked.

Fun fact: Grandiosa ‘s godmother is Italian screen legend and longtime MSC ambassador Sophia Loren. She actually holds that honor for most of MSC’s fleet!

13. Mardi Gras

• Cruise line: Carnival
• Gross tonnage: 181,808
• Length: 1,130 ft / 344 m
• Max. beam: 138 ft / 42 m
• Staterooms: 2,641
• Max. passengers: 6,630

The 13th biggest cruise ship in the world is Carnival Cruise Line’s widely-anticipated Mardi Gras (currently the cruise line’s second-largest ship) which took her maiden voyage in July 2021.

Mardi Gras debuted several new concepts for Carnival, including three new dining venues. Big Chicken by Shaq serves up fried chicken and more, while quick-service Street Eats offers three food stations, each specializing in a different type of cuisine.

Emeril’s Bistro 1396 , created in partnership with celebrity chef Emeril Lagasse (Carnival’s new Chief Culinary Officer ), serves up New Orleans-style Creole dishes.

The Grand Central Atrium reinvented the central area of the ship, with a larger space featuring bars, cafés, and shops with aerial performances overhead.

She also boasts the first rollercoaster at sea —BOLT is an open-air coaster with spectacular sea views. Riders can control their speed using pedals inside each two-person motorcycle-themed car.

12. AIDAcosma

• Cruise line: AIDA
• Year built: 2021
• Gross tonnage: 183,200
• Length: 1,106 ft / 337 m
• Staterooms: 2,626
• Max. passengers: 6,600
• Passenger decks: 16

Setting sail on her maiden voyage in February 2022, Carnival Corporation’s German brand AIDA ‘s newest ship AIDAcosma makes #12 on the list.

AIDAcosma ‘s unique features include the Ocean Deck , a four-story relaxation oasis with an infinity pool and panoramic ocean views.

The ship also has a reinvented Fun Park , complete with a ropes course, rock-climbing wall, and a large indoor playground.

Her seventeen restaurants and 23 bars and cafés ensure that guests have plenty of variety on their cruise vacation! Notable is the new Mamma Mia specialty restaurant, serving fresh Italian cuisine including homemade pasta dishes.

11. Carnival Celebration

• Gross tonnage: 183,521
• Length: 1130 ft / 340 m
• Max. beam: 137 ft / 42 m
• Staterooms: 2687
• Max. passengers: 6631

Carnival Cruise Line’s newest ship Carnival Celebration launched in 2022 as the second member of the Excel class , joining her sister Mardi Gras . The new ship almost made the top 10 of the largest cruise ships, landing at number 11.

Celebration pays homage to her homeport of Miami with the 820 Biscayne zone, named after the cruise line’s first headquarters. The zone will feature the Deco Deli and 820 Bar , serving up Cuban sandwiches and tropical drinks.

Pizza fanatics will want to try the brand new Miami Slice , a free pizzeria that replaces the Pizza Pirate or Pizzeria del Capitano venues found on all other Carnival ships. The walk-up pizza joint features vibrant décor reminiscent of late-night eateries on Miami Beach’s Ocean Drive. 

Younger guests can check out Space Cruisers , a new program offered in partnership with the Kennedy Space Center. Kids age 2 to 11 will have the opportunity to try NASA-inspired activities tailored to their age group.

Celebration is the second ship in Carnival’s fleet to be completely powered by liquefied natural gas (LNG).

Related: Cassidy Gifford Becomes Godmother of Carnival Celebration in Miami

10. AIDAnova

• Year built: 2018
• Gross tonnage: 183,858
• Max. passengers: 6,654

In tenth place is AIDAnova , sister ship to AIDAcosma . The first of AIDA’s ships to use liquefied natural gas (LNG), AIDAnova has nearly zero emissions.

Wellness-minded cruisers will love AIDAnova ‘s 3545 square meters dedicated to fitness and relaxation. The new Body & Soul Spa features five ocean-view saunas, a sun terrace with three jacuzzis, and a tepidarium. Over 30 free exercise classes are offered each week in the Sport area, or train solo in the open-air gym.

Or take a leisurely stroll on the Lanai deck, where guests can walk almost all the way around the ship, stopping at restaurants and bars including the Lanai Bar at the stern.

• Cruise line: P&O
• Gross tonnage: 184,089
• Length: 1,130 ft / 344.5 m
• Staterooms: 2,614

Number nine is P&O UK’s Iona , the largest cruise ship built specifically for the British market. One of the newer ships on the list, Iona was delivered in 2020 but made her first voyage in August 2021.

Family-friendly Iona features the enclosed SkyDome pool area, kids’ splash zone, and a shallow pool for little cruisers. Hosted by specially-trained Reef Rangers, the Reef kids’ club is a fun environment for children aged 2-17, open from early morning until late.

But Iona ‘s not all about the kids! She’s actually home to the world’s first gin distillery at sea , producing the Marabelle label. Inspired by the Scottish island of Iona, the gin contains 18 botanicals. Guests can attend two unique gin masterclasses on board, including one that allows you to craft your own gin with expert guidance.

8. (tie) Costa Toscana

• Cruise line: Costa
• Gross tonnage: 185,010
• Staterooms: 2,612
• Max. passengers: 6,554

Italian line Costa Cruises’ newest ship, Costa Toscana , comes in at the eighth-largest cruise ship in the world. The Tuscan-inspired vessel features furnishings, fabrics, and accessories all made in Italy. Even the driftwood used to craft dining tables at Archipelago restaurant was harvested from the Italian shoreline by Guardians of the Coast .

Food is a major focus of the ship, with many of her 21 restaurants offering authentic local cuisine by chefs including Bruno Barbieri, Hélène Darroze, and Ángel León. Even the littlest cruisers have a special place to eat— Squok Restaurant is dedicated to families with kids.

If all the amazing food on board inspires you, be sure to check out Toscana ‘s Food LAB , where guests can learn to prepare their own culinary creations alongside the ship’s chefs.

8. (tie) Costa Smeralda

Tied for eighth place is Costa Smeralda , a favorite of sustainability-minded cruisers. Smeralda was the first in Costa’s fleet powered by liquefied natural gas (sister ship Toscana now also shares this feature), a fuel source that reduces the ship’s environmental impact.

Other eco-friendly features include LED lighting throughout the ship, an onboard desalinization plant that sustainably harvests onboard water directly from the sea, and systems that recover the engines’ heat to reduce energy use.

Costa Smeralda earned the coveted Green Plus notation from RINA, only awarded to the most environmentally friendly cruise ships.

• Cruise line: P&O Cruises
• Gross tonnage: 185,581
• Length: 1130 ft / 344.5 m
• Staterooms: 2614
• Max. passengers: 6685

P&O UK ‘s newest ship Arvia is also the cruise line’s largest, and debuts at #7 on the 2023 list of biggest cruise ships. An Excel-class ship like Iona , Arvia is similar but boasts some key differences.

Like her sister, this ship also features a Sky Dome over the pool area—but Arvia ‘s is retractable to allow for alfresco swimming, dining, and entertainment when the weather is right.

Arvia is home to the fleet’s first swim-up bar , complete with plenty of in-water seating, allowing guests to order and enjoy a cocktail right in the pool.

The new ship debuted several new restaurant concepts, including Green & Co featuring Mizuhana , featuring fish and plant-based cuisine. Also new are Roast at The Quays for traditional British lunches and the 6th Street Diner , an American-style diner serving breakfast,brunch, and dinner.

Arvia also has the first rum distillery at sea ! The Tidal Rum has partnered with P&O to produce the unique rum blend on the ship at Anderson’s Bar .

6. MSC World Europa

• Gross tonnage: 215,863
• Length: 1094 ft / 333.3 m
• Max. beam: 154 ft / 47 m
• Staterooms: 2626
• Max. passengers: 6762

With the debut of MSC World Europa in December of 2022, MSC Cruises now has a whopping seven ships on the list of the top 20 biggest cruise ships in the world—the most of any cruise line!

The Geneva-based company has been working diligently to expand the fleet and MSC’s newest cruise ship is a whopper of a vessel.

The ship is an astounding 21 decks high (there’s a deck 22, but cruise superstition skips deck 13), four decks taller than the largest cruise ship in 2023. Sixteen of those decks are passenger-accessible.

Much like the megaships offered by Royal Caribbean, MSC World Europa is divided into several districts that contain similar offerings—a must-have on any gargantuan cruise ship. Guests can visit the adults-only Zen district for a bit of calm, or the Family district with ten kids’ facilities offering fun for little cruisers and their grownups.

Ranking among the top ships with the most water features at sea, World Europa offers six pools and 14 hot tubs , along with an aquapark featuring multiple waterslides.

MSC World Europa is also the line’s first LNG-powered cruise ship —and the biggest liquefied natural gas powered cruise ship in the world! This cleaner alternative to traditional marine fuel significantly reduces carbon, sulfur, and nitrogen oxide emissions.

5. Allure of the Seas

• Cruise line: Royal Caribbean
• Year built: 2010
• Gross tonnage: 225,282
• Length: 1,180 ft / 360 m
• Max. beam: 198 ft / 60.5 m
• Staterooms: 2,742
• Max. passengers: 6,780

Royal Caribbean’s Allure of the Seas ranks as the fifth largest cruise ship in 2022. She’s the second (and smallest) of the Oasis-class ships.

Allure of the Seas features seven themed “neighborhoods”—the Royal Promenade, Central Park, Entertainment Place, Boardwalk, Pool and Sports Zone, Vitality at Sea, and the Youth Zone.

With a ten-deck-high zip line and the interactive H2O Zone waterpark, Allure of the Seas is a favorite ship for adventurous cruisers of all ages.

4. Oasis of the Seas

• Year built: 2009
• Gross tonnage: 226,838

Number four is Oasis of the Seas , the first of the namesake Oasis class, and the oldest ship to make the top 15 list. Built in 2009, she was then the largest cruise ship in the world, and the first to have a maximum capacity of over 6000 passengers!

Oasis of the Seas may be an older ship, but she doesn’t look like one! In 2019 she had a $165 million transformation that brought the ship up to date.

Entertainment abounds on this ship, from the splashy Aqua80 show in the AquaTheater to Music Hall , a live music venue with plenty of floor space for dancing. Or try one of the four onboard water slides including the ten-story-high Ultimate Abyss .

3. Harmony of the Seas

• Year built: 2016
• Gross tonnage: 226,963
• Length: 1,188.1 ft / 362.12 m
• Max. beam: 215.5 ft / 65.7 m
• Staterooms: 2,747
• Max. passengers: 6,687

Coming in at number three is Royal Caribbean’s Harmony of the Seas , built in 2016 at a cost of 1.3 billion dollars.

With her three pool decks containing an impressive collection of pools and hot tubs, you’ll never feel crowded taking a dip. You can even learn how to SCUBA dive , right on the ship! Aboard Harmony of the Seas , guests have the opportunity to take the PADI® Open Water Diver Course, culminating with open water dives at various ports of call.

After you’ve worked up an appetite in the pool, try one of Harmony of the Seas ‘ twenty restaurants, serving over 200 different dishes on a daily basis.

2. Symphony of the Seas

• Gross tonnage: 228,081
• Length: 1,184.42 ft / 361.011 m
• Staterooms: 2,759
• Max. passengers: 6,680

The largest cruise ship in the world until 2022, Symphony of the Seas comes in second—but is still a behemoth at 1184 feet and 228,081 gross tons!

Built in 2018, Symphony of the Seas boasts some fun tech! Check out the Big Wonder , a seven-ton canopy lit with color-changing LEDs that cast a glow over the ship’s Solarium at night.

Enjoy a cocktail at Bionic Bar , where one of two robot bartenders can shake you up the perfect martini. But don’t worry, the ship’s 13 other bars and lounges are staffed by friendly humans.

Or play a lively game of glow-in-the-dark laser tag to battle for control of Planet Z —when the ship’s ice rink is temporarily transformed into an alien world, of course.

1. Wonder of the Seas

• Gross tonnage: 236,857
• Length: 1,187.8 ft / 362.04 m
• Max. beam: 210 ft / 64 m
• Staterooms: 2,859
• Max. passengers: 6,988

Wonder of the Seas from Royal Caribbean International is the cruise line’s newest—and the world’s biggest cruise ship, at almost 1188 feet long and 236,857 gross tons!

Delivered in February 2022, Wonder of the Seas made her maiden voyage from Fort Lauderdale on March 4, 2022.

Like the other Oasis-class ships, she’s organized into neighborhoods, but with the addition of an eighth unique section. This new neighborhood is dedicated to suite guests, with a plunge pool and bar as well as the suites-only Coastal Kitchen and Suites Lounge .

Wonder of the Seas offers some exciting new features—in addition to boasting the largest poolside movie screen of any RCCL ship there’s also The Vue , a cantilevered bar offering panoramic ocean views.

For the kids, there’s the new Wonder Playscape —an underwater-themed play area with climbing walls and an interactive puzzle mural.

Comparing the 20 biggest cruise ships in the world

Largest cruise ships faq.

How is the size of a cruise ship measured?

Ships are measured by gross tonnage, which is a measure of internal volume.

What does maximum beam mean on a ship?

Maximum beam is the measurement at the widest part of a ship’s hull.

Which cruise ship is the biggest?

Royal Caribbean’s  Wonder of the Seas  is the world’s largest cruise ship, with a gross tonnage of 236,857.

Which cruise ship is the longest?

Royal Caribbean’s  Wonder of the Seas  is the world’s longest cruise ship at 1,187.8 ft (362.04 m).

Which cruise ship can hold the most passengers?

Royal Caribbean’s  Wonder of the Seas  can hold the most passengers, with a maximum occupancy of 6,988.

Which cruise ship has the most staterooms?

Royal Caribbean’s  Wonder of the Seas  has the most passenger staterooms, at 2,859.

Have you sailed on one of the largest cruise ships in the world? Or do you prefer cruising on a smaller ship? I’d love to hear in the comments below!

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The World’s Largest Cruise Ship Is Nearly 1,200 Feet Long

Scheduled to debut in January, the vessel can accommodate 5,600 guests and 2,350 crew members

Daily Correspondent

The world’s largest cruise ship is almost ready to set sail.

Royal Caribbean’s massive new ship, Icon of the Seas , passed its inaugural round of sea trials with flying colors, bringing it one step closer to hitting the open ocean with passengers, the cruise line  announced late last month. If all goes as planned, the record-breaking vessel will begin sailing in the Caribbean in January 2024.

Just how big is Icon of the Seas ? Really big. As Jalopnik ’s Ryan Erik King writes, it’s the size of five Titantics. More specifically, Icon of the Seas measures 1,198 feet long—nearly a quarter of a mile—and has a gross tonnage of 250,800. All that space means it can accommodate 5,600 guests and 2,350 crew members.

The cruise line is positioning the vessel as “the ultimate family vacation,” as CEO Michael Bayley told reporters earlier this year, per  CNN ’s Maureen O’Hare.

“When you step back and look at all the energy and time that has gone into creating this ship, it is mind-blowing,” he added.

The previous world’s largest cruise ship was also a Royal Caribbean vessel, Wonder of the Seas , which spanned 1,188 feet long and featured 18 decks.

Crews in Turku, Finland, began work on Icon of the Seas in 2021. Last month, the vessel sailed the open ocean for the first time, as staffers spent four days testing the main engines, hull, brakes, steering system and other components. They also measured noise and vibration levels. 

The vessel will undergo another round of sea trials later this year before officially launching in Miami early next year, according to Royal Caribbean. Icon of the Seas will primarily take cruisers to the islands of the eastern and western Caribbean on seven-night itineraries.

With progress on Icon of the Seas moving along, Royal Caribbean has already started building another large “icon class” ship. The cruise line expects that unnamed vessel to launch in 2025, per a  statement .

Icon of the Seas has 20 total decks, 7 swimming pools and 8 “neighborhoods,” or distinct areas with entertainment and dining. Another noteworthy feature is Category 6, which will be the largest waterpark at sea when Icon of the Seas sets sail.

The ship will be equipped with a special grooming robot that will clean the hull whenever it’s in port to help reduce drag and improve fuel efficiency by 3 to 4 percent, reports  TTG Media ’s Charlotte Cullinan.

Icon of the Seas will also be the first ship in the cruise line’s fleet to run on liquefied natural gas and  fuel cells , which are similar to batteries but do not need to be recharged. Water is the main byproduct of fuel cells—which combine oxygen and hydrogen to produce energy—which should help the ship reduce its greenhouse gas emissions.

Liquefied natural gas , meanwhile, is a controversial energy source that involves cooling natural gas to a liquid state to make it easier to transport. The liquid version is “actually worse than ordinary gas,” writes the  Natural Resources Defense Council . “The energy required to chill, ship and regasify the fossil fuel makes it far more carbon-intensive and increases the potential for leakage of dangerous methane,” according to the organization.

Royal Caribbean’s leaders say they view liquified natural gas as a “ transitional fue l,” and that they hope to continue to  reduce the environmental impact of their ships moving forward. 

"[Liquefied natural gas] is about 20-30 percent better for the environment [than heavy fuel oil], but it’s still not going to be the solution,” Bayley tells TTG Media . “We don’t know the answer, but the whole industry is working towards the answer.”

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Sarah Kuta | READ MORE

Sarah Kuta is a writer and editor based in Longmont, Colorado. She covers history, science, travel, food and beverage, sustainability, economics and other topics.

The World's Largest Cruise Ship Is Coming in January—Here's What It's Like Inside

By Jessica Puckett

The biggest thing to ever hit cruising is coming in January 2024, when Royal Caribbean’s Icon of the Seas —which will be the largest cruise ship in the world —will debut to passengers for the first time.

With capacity for nearly 10,000 passengers and crew, Icon of the Seas is billed as part all-inclusive resort, part theme park, and a massive destination unto itself . Clocking in at 250,380 gross tons and measuring nearly a quarter mile long (1,198 feet to be exact), the vast ship will sport a total of 20 decks, 18 of which will be accessible to guests.

The ship will be divided into eight different “neighborhoods,” each with their own distinct atmospheres, dining options, and activities. “ Icon of the Seas is truly what we call a white paper ship,” Anna Drescher, manager of architectural design, new building and innovation for Royal Caribbean group, said in a video statement . “The reason that we call it that is we start with a blank sheet of sketch paper, so it truly is starting fresh.”

In June 2023, the ship hit a major milestone when it completed its first sea trials outside the shipyard in Turku, Finland. Next up is the colossal new ship’s first voyage, slated to depart on January 27, 2024. It will sail roundtrip from Miami to the Caribbean islands of St. Kitts, St. Thomas, and the Bahamas.

The ship's typical seven-day itineraries include three at-sea days, so passengers have time to fully enjoy the endless choices of amenities on board. “We want guests to walk up to the ship and just have this moment of: I can’t believe that’s where I’m going ,” said Jennifer Goswami, the line’s senior manager of product development.

Here's a look at the enormous scale of the new ship and what to expect on board.

When it begins sailing, the Icon of the Seas will offer a total of 2,805 staterooms that can hold 5,610 passengers at double occupancy, or a maximum of 7,600 guests. Passengers can choose from a whopping 28 different room types, including Sunset Suites with wraparound balconies and Family Infinite Balcony staterooms with bunkbeds fit for a family of up to six.

The largest suite on board will be the three-story, 1,772-square-foot “Ultimate Family Townhouse,” which comes with its own movie theater, ping-pong table, karaoke, and a slide between floors. It can sleep up to eight people and costs approximately $75,000 per week.

Among the eight "neighborhoods," or sections of the ship with distinct ambiance, are Central Park, which offers greenery and sidewalk cafes, and The Hideaway, which aims for a European beach club aesthetic. There's also The Suite Neighborhood, Surfside, Thrill Island, Chill Island, The Royal Promenade, and the Aquadome.

The ship's 2,350 crew members will also get their own neighborhood, complete with amenities like a gaming room and hair salon.

Another superlative for Icon will be sporting the largest waterpark at sea. The park, called Category 6, features six different record-breaking waterslides, including the tallest onboard waterslide. There will also be a free-fall slide, plus a raft-style slide for four passengers to ride together.

Jessica Chapel

Emily Pennington

Charlie Hobbs

Kaitlin Menza

Seven pools and nine whirlpools will be located throughout the ship, including the first infinity pool on a cruise ship to be suspended in the air. The Royal Bay pool, located on the 15th deck, will break the record for largest pool at sea, holding an astounding 40,000 gallons of water.

Across the towering vessel, there'll be more than 20 food venues and 15 bars and nightlife experiences, including a sweeping three-level main dining room.

Among the options for grabbing a drink will be the line's first onboard swim-up bar, a walk-up Champagne bar, and a bar specializing in coffee cocktails like espresso martinis.

On the entertainment front, Royal Caribbean has hired 75 performers to titillate guests across three cavernous theaters. The Absolute Zero ice arena will feature shows with Olympic-level skaters, while the AquaTheater will combine the talents of divers, robots, and skateboarders.

In the Royal Theater, a 16-piece orchestra (the largest one at sea), will accompany shows like the Wizard of Oz.

In smaller venues throughout the ship, like the dueling piano bar, 50 live musicians and comedians will perform each night, making it possible for every type of passenger to find something that fits their style.

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BOLDER AND BIGGER

The world's largest cruise ships.

On the world’s largest cruise ships, bigger means bolder adventures.

On the world’s largest cruise ships, bigger means bolder adventures. There isn’t a holiday in the world that packs more adventure into one week than Oasis Class ships – Harmony®, Allure®, Symphony®, Oasis®, Wonder® and Utopia of the Seas℠. Whether you’re looking forward to a thrill-filled getaway with a squad that spans several generations, or a sun-soaked couples’ retreat elevated by world class dining and electrifying nightlife, each Oasis Class cruise ship offers experiences to wow every kind of traveler. Discover why the largest cruise ships sailing to Caribbean and Europe vacation destinations are consistently awarded Best Ship year after year by Travel Weekly readers. 

FIVE SHIPS, ENDLESS ADVENTURES

Larger than life thrills.

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DISCOVER THE BOLDEST ADVENTURES YET

With more than 16 decks and 20 restaurants, 7 distinct neighborhoods bustling with unique onboard experiences, and endless thrills to discover around every corner, the world’s largest cruise ships serve up expeditions filled with excitement drenched slides and rides, shows that transcend the stage, and gourmet globetrotting from Italy to Wonderland.

GAME CHANGER

When it debuted, Oasis of the Seas® won Best Cruise Ship — and now the Amplified game changer will set a new standard for making memories.

SHOW STOPPER

Awarded Best for Entertainment, Best Individual Cruise Ship, and Best Large Cruise Ship, Allure of the Seas® is a certified scene-stealer.

FAMILY FAVORITE

Named Best for Families in the Cruise Critic’s Choice Awards, Harmony of the Seas® delivers thrills to explorers of all ages.

BIGGEST & BOLDEST

The largest cruise ship in the world, Symphony of the Seas doesn’t just win awards — it wins over everyone who sets foot onboard.

NEWEST, BIGGEST AND BOLDEST FAMILY ADVENTURES

Go big on bold when you sail aboard the three largest cruise ships in the world. Deck-defying attractions aren’t the only things to look forward to when you sail onboard the newest cruise ships addition to the Oasis Class.

utopia OF THE SEAS℠

Introducing Utopia of the Seas℠ — the ship that’s totally transforming weekends for good. We’re talking bigger flavors. Bolder play. And better chill days than you’ve ever imagined. No craving goes unsatisfied with over 40 ways to dine and drink. New charttopping showstoppers blow your mind on stage, ice, water and air. This is not a routine recharge. This is the World’s Biggest Weekend — arriving in summer 2024 to Port Canaveral.

EXPLORE UTOPIA OF THE SEAS

WONDER OF THE SEAS®

Wonder of the Seas® brings even bigger adventures to the award-winning Oasis Class. Like eight unique neighborhoods, including the Suite Neighborhood. A totally redesigned pool deck with more ways to soak up the sun —or shade —than ever before. The most immersive AquaTheater ever, with a game-changing surround-stage that makes you feel part of the action.

EXPLORE WONDER OF THE SEAS

SYMPHONY OF THE SEAS®

One of the world’s biggest cruise ship, Symphony of the Seas®, the travel adventures are larger than life. From epic onboard thrills to revolutionary dining and entertainment, this ship will change how you vacation no matter what kind of experience you’re after.

EXPLORE SYMPHONY OF THE SEAS

DISCOVER THE WORLD’S LARGEST CRUISE SHIPS

There isn’t a vacation in the world that packs more adventure into one week than Oasis Class ships — Harmony®, Allure®, Symphony®, Oasis, Wonder®   and Utopia of the Seas ℠ . With ships this packed with adventure, next-level thrills never ends.

OASIS OF THE SEAS

Reimagined from bow to stern, the Amplified Oasis of the Seas® is loaded with fresh and exciting things to do to level up your romantic retreat — including bars, entertainment and dance floors that keep the fun going long into the night.

EXPLORE OASIS OF THE SEAS

ALLURE OF THE SEAS

The most awarded ship in the world is stealing the spotlight again for entertainment, dining, family activities and more, it’s filled with endless ways to make every moment incredible.

EXPLORE ALLURE OF THE SEAS

HARMONY OF THE SEAS

Rally the crew for the boldest family vacation ever. Harmony of the Seas® offers thrills for all ages, like the tallest slide at sea, surf sessions on the FlowRider®* and plenty of unique spaces just for kids of all ages.

EXPLORE HARMONY OF THE SEAS

Central Park

Ultimate abyss/flowrider*, splashaway bay, sugar beach, playmaker's.

DISCOVER. PERFECT DAY AT COCOCAY

Forget everything you thought you knew about beach days, because this private island destination is raising the standard to a whole new level. Experience elevated island vibes while lounging in The Bahamas’ only private overwater cabanas. Earn bragging rights on the tallest waterslide in North America. And take your vacation to new heights — literally — in a helium balloon ride above the island. This is Perfect Day at CocoCay — only on Royal Caribbean®.

EXPLORE PERFECT DAY AT COCOCAY

SEVEN NEIGHBORHOODS ENDLESS WAYS TO EXPLORE

Get ready for an unforgettable getaway filled with first-of-their-kind feats, including seven distinct and vibrant neighborhoods that each offer up bucket list adventures, palate-pleasing dining and inspiring entertainment to rival any cosmopolitan city on land — and they’re only found on Oasis Class ships by Royal Caribbean®. 

READ OUR GUIDE TO OASIS CLASS NEIGHBORHOOD'S

EXPLORE MORE  

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The world’s largest cruise ship has 20 decks, 7 pools and would cover almost 4 city blocks

The ship is the size of almost four city blocks and runs nearly 1,200 feet (365 meters) from bow to stern. AP Video by Daniel Kozin.

FILE - The Icon of the Seas, the world’s largest cruise ship, sits docked after arriving to its home port in Miami, Wednesday, Jan. 10, 2024. Royal Caribbean’s Icon of the Seas is leaving South Florida on Saturday, Jan. 27, for its first seven-day island-hopping voyage through the tropics. (AP Photo/Rebecca Blackwell, File)

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FILE - Icon of the Seas, the world’s largest cruise ship, sits at dock as it prepares for its inaugural public voyage later this month, Thursday, Jan. 11, 2024, at PortMiami in Miami. Royal Caribbean’s Icon of the Seas is leaving South Florida on Saturday, Jan. 27, for its first seven-day island-hopping voyage through the tropics. (AP Photo/Rebecca Blackwell, File)

FILE - Waterslides are seen atop a deck overlooking floors of rooms aboard Icon of the Seas, the world’s largest cruise ship, during a media day preview as it prepares for its inaugural public voyage later this month, Thursday, Jan. 11, 2024, in Miami. Royal Caribbean’s Icon of the Seas is leaving South Florida on Saturday, Jan. 27, for its first seven-day island-hopping voyage through the tropics. (AP Photo/Rebecca Blackwell, File)

FILE - Employees and visitors walk in the Royal Promenade area of Icon of the Seas, the world’s largest cruise ship, during a media day preview as it prepares for its inaugural public voyage later this month, Thursday, Jan. 11, 2024, at PortMiami in Miami. Royal Caribbean’s Icon of the Seas is leaving South Florida on Saturday, Jan. 27, for its first seven-day island-hopping voyage through the tropics.(AP Photo/Rebecca Blackwell, File)

Inter Miami soccer player Lionel Messi, center, bumps fists with a member of the Red Hot Chilli Pipers bagpipe band, left, during a naming ceremony for Royal Caribbean International’s new cruise ship, Icon of the Seas, Tuesday, Jan. 23, 2024, in Miami. Inter Miami CF has formed a partnership with the cruise line Royal Caribbean International. At right is Jason Liberty, president and CEO of the Royal Caribbean Group. (AP Photo/Lynne Sladky)

MIAMI (AP) — The world’s largest cruise ship — the size of almost four city blocks — is set to begin its maiden voyage Saturday as it leaves from the Port of Miami.

Royal Caribbean’s Icon of the Seas runs nearly 1,200 feet (365 meters) from bow to stern.

The ship, which is leaving South Florida for its first seven-day island-hopping voyage through the tropics, was officially christened Tuesday with help from soccer legend Lionel Messi and his Inter Miami teammates.

At a glance

The Icon of the Seas:

• can carry up to 7,600 passengers and 2,350 crew members

The ship has:

• six waterslides
• seven swimming pools
• an ice-skating rink
• more than 40 restaurants, bars and lounges

“Icon of the Seas is the culmination of more than 50 years of dreaming, innovating and living our mission – to deliver the world’s best vacation experiences responsibly,” Royal Caribbean Group President and CEO Jason Liberty said earlier this week. “She is the ultimate multigenerational family vacation, forever changing the status quo in family travel and fulfilling vacation dreams for all ages on board.”

The ship sets sail as Royal Caribbean’s cruises are having a moment online. Since December, the company’s 9-month “Ultimate World Cruise” has captivated — and confused — a following of avid watchers on social media.

Millions are following the journey through the eyes of the passengers, as they live and post their lives aboard a vessel they’ll be on for nearly a year. If it sounds like a reality show, that’s exactly what some watchers have turned it into.

When the Icon of the Seas was first revealed in October 2022, the ship spurred the single largest booking day and the highest volume booking week in Royal Caribbean’s then 53-year history, according to the cruise line.

A dancer performs in front of Inter Miami soccer player Lionel Messi, second from left, seated, during an event on the world’s largest cruise ship Icon of the Seas, Tuesday, Jan. 23, 2024, in Miami. The MLS soccer team Inter Miami CF has formed a partnership with the cruise line Royal Caribbean International. (AP Photo/Lynne Sladky)

The Icon of the Seas is divided into eight neighborhoods across 20 decks. The ship includes six waterslides, seven swimming pools, an ice skating rink, a theater and more than 40 restaurants, bars and lounges. The ship can carry up to 7,600 passengers at maximum capacity, along with 2,350 crew members.

It is powered by six dual-fuel engines, which can be powered by liquefied natural gas (LNG), a fuel alternative that the Cruise Lines International Association says reduces sulfur and greenhouse gas emissions. However, some environmentalists worry LNG-powered ships increase methane emissions . Other say that vacationers generate eight times more carbon on a cruise than they do on land.

Royal Caribbean says every kilowatt used on the Icon of the Seas “is scrutinized for energy efficiencies and emission reductions.”

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On the World’s Largest Cruise Ship, Thrills and Space to Chill

Our reporter joined thousands of passengers on the inaugural sailing of Royal Caribbean’s Icon of the Seas. Yes, the water rides were wild. But the most surprising thing she found? Some actual peace and quiet.

Ceylan Yeginsu, a reporter for the Travel section, tries out a ride in the sprawling water park on Royal Caribbean’s Icon of the Seas cruise ship. Credit...

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By Ceylan Yeğinsu

Photographs by Scott McIntyre

• Published Feb. 9, 2024 Updated Feb. 22, 2024

One man got down on his knees and kissed the rug emblazoned with the ship’s logo. Another lifted his wife and swung her around, ecstatic to be among the roughly 5,000 passengers to embark on the inaugural sailing of the world’s largest cruise ship, the Icon of the Seas.

For months, the 250,800-ton ship, which can carry nearly 8,000 people, has been making headlines — including some that have criticized its size and potential to damage the environment . But the passengers who plunked down $1,800 to $100,000 and boarded the ship at Port Miami in Florida on Jan. 27, said nothing could have prepared them for the vessel’s sheer scale.

“It’s stunning,” said Christina Carvalho, a 43-year-old accountant from Oakland, Calif., as she stood on the ship’s Royal Promenade, gaping up at “The Pearl,” a gigantic kinetic art installation. “It feels even bigger than I expected.”

While Royal Caribbean has packed the ship with amenities to craft “the ultimate family vacation,” the company’s design team has tried to defy negative stereotypes like crowded decks and long lines. Instead of steel walls, the interior is open and airy, with floor-to-ceiling windows to bring passengers closer to the water and make the central thoroughfare feel less like a shopping mall.

“Over the years our customers told us that despite being on the ocean, they did not feel connected to it, so with Icon we wanted to bring water everywhere,” said Jennifer Goswami, the director of product development at Royal Caribbean International.

I was on board the Icon of the Seas for five days of its seven-night inaugural sailing to the eastern Caribbean. Here are some of my takeaways:

Embarkation

Embarkation starts through Royal Caribbean’s app. After some glitches, it took me 10 minutes to scan identification documents, fill out a health form and pick a time slot for boarding.

On the day of the sailing, I headed to Port Miami expecting chaos, but as I got out of the taxi, I was greeted by a porter who took my bag and ushered me to the terminal. I scanned my app, showed my passport and went through security in less than 10 minutes. I lingered, waiting to see if others had as smooth an experience as I did, but there was just a steady flow of passengers ascending the gangway.

The ship has the feel of a city, with eight distinct “neighborhoods.” My favorite, Central Park, was filled with more than 33,000 plants; it was the perfect place to stroll or read on a bench. The Royal Promenade, with karaoke and a piano bar, could get crowded and noisy at peak times.

The seven swimming pools are designed for different vibes and demographics: The Hideaway is an adults-only infinity pool, with D.J. sets and cocktails; another adult pool has an adjacent children’s splash pool. Empty lounge chairs were plentiful for sunbathers across the ship.

On our first sea day, I was so surprised by the relative absence of crowds that I walked the ship trying to find them. But with so many venues, including 40 restaurants, bars and entertainment spaces, passengers were constantly moving around.

Seeking a quiet space one afternoon, I found the Aquadome , a tranquil lounging area with wraparound windows. Fellow passengers napped there.

Entertainment and activities

From a sunrise surf simulator lesson to late-night dancing in the nightclub, the ship seems to offer something for everyone, most of it free. The water park with six slides was a big draw. One ride, the Crown’s Edge, is not complimentary: Starting at $49, it tosses you (in a harness) above the sea, leaving you dangling.

There is a fitness center, jogging track, a basketball and soccer court, a putt-putt course, pickleball, rock climbing and dancing. A wellness center and spa offers treatments for an additional cost. All can be reserved on the app; for popular attractions like the Crown’s Edge it’s helpful to book ahead because places fill up fast.

For nightly entertainment, “Aqua Action” was a standout, with aquatic entertainers performing under a 55-foot waterfall, as was the comedy club.

Not surprisingly, some passengers felt overprogrammed. “There’s almost too much to do,” said Nancy Carter, 54, a nurse from Brighton, England. “It’s hard to plan your day and even when you are busy doing something, you feel like you are missing out on something else.”

At the Surfside neighborhood, there are pools and restaurants for both adults and children so that families can spend time together. For parents wanting alone time, the Adventure Ocean child-care facility has play areas and programs for ages 6 months to 12 years that is included in the fare.

There’s a social center for teenagers, too, with games and music. “It’s a great place to meet new people and make friends,” said Madison Foxx, 14, from Morrisville, N.C. Her mother, Ashley, a 38-year-old federal prosecutor, said the ship kept her two children entertained and allowed her both alone time and quality family time.

“I can relax and the kids are happy and busy all day," she said. “Then we have many special moments together.”

One of the biggest surprises was the array of dining choices.

The Windjammer Cafe and the main dining room were the busiest all-inclusive options. My daily go-to was the Aquadome food hall, with crepes made-to-order and a Greek food stand. Another favorite of mine was Pier 7, a restaurant in Surfside that served raw-tuna Buddha bowls, mango-lime shrimp tostadas and other dishes.

Meals at specialty restaurants, such as Giovanni’s Italian Kitchen and Hooked Seafood, come at an additional cost, or are included in some food and beverages packages that range from $9.99 to $115 per day. Reservations are recommended.

The Empire Supper Club offers an eight-course meal paired with cocktails. At $200, the tasting menu included Wagyu rib-eye, rabbit and sea bass topped with parsnip and red beets.

Cabin prices — which recently increased, because of high demand — range from $2,699 per person for an interior cabin to over $100,000 for a three-story townhouse with an indoor slide and backyard. Some family accommodations have connecting rooms and large terraces.

Though only 204 square feet, my ocean balcony room did not feel cramped thanks to minimalist design and the views.

Environment

Royal Caribbean says it set a new standard for sustainability with this ship, installing advanced water-treatment and waste systems, among other features. But some environmental groups say that building a vessel this size is not compatible with the cruise industry’s long-term sustainability goals.

On board, I saw staff sorting through the trash to take out misplaced items to recycle, and single-use plastic appeared to be minimal; passengers were given reusable cups at drinking stations.

That the water slides remained on, even after they were closed to passengers, caught me by surprise. It seemed like an unnecessary waste of energy. (Royal Caribbean did not respond to a request for comment.)

Passengers I spoke to did not seem too concerned about the ship’s potential to harm the environment, with some arguing that land and air travel are not climate-friendly either.

Our seven-night itinerary started with two days at sea. The first stop was on Day 4 at Basseterre, the capital of St. Kitts and Nevis. Excursions ranged from a hike up Mount Liamuiga to a food-and-rum tour, with prices from $39 to $249. I chose a sailing and snorkeling excursion ($155) and enjoyed the secluded bay, but the beach was crowded and touristy.

An anticipated excursion for Ms. Foxx, the federal prosecutor, and others was Coco Cay, Royal Caribbean’s private island. When I asked about her visit — I called later, having to disembark before the excursion — Ms. Foxx said her children loved the slides and snorkeling.

And would she sail on the Icon of the Seas again?

“Yes, but I might wait a bit,” she replied. “I want everyone to get a chance to try it out.”

Follow New York Times Travel on Instagram and sign up for our weekly Travel Dispatch newsletter to get expert tips on traveling smarter and inspiration for your next vacation. Dreaming up a future getaway or just armchair traveling? Check out our 52 Places to Go in 2024 .

An earlier version of this article misstated the number of plants in the Central Park “neighborhood” of Icon of the Seas. It has more than 33,000 plants, not 20,000 plant species.

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Ceylan Yeginsu is a travel reporter for The Times who frequently writes about the cruise industry and Europe, where she is based. More about Ceylan Yeğinsu

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Cruise ship lifeboats and rafts: How your ship is prepared for an emergency

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Do cruise ships have enough lifeboats for everyone?

It’s a question that comes to many cruisers’ minds, especially if they’re hesitant about sailing across oceans and seas, far from land.

You can rest assured that cruise lines have many safety systems in place in the rare instance that a major emergency occurs at sea. Among these systems are, of course, the brightly colored lifeboats that you’ll see lining the sides of your ship. Not only are they there to carry passengers to safety if the ship needs to be abandoned, but they’re also used as tender boats in a port where the ship can’t dock at a pier.

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You may have other questions about lifeboats, either from curiosity or safety concerns. How reliable are the small vessels? What supplies are on board? Do they have restrooms?

Here are the top things to know about cruise ship lifeboats, so you’ll feel safe and confident when heading out on your next voyage.

What does a lifeboat look like?

Lifeboats are orange or yellow watercraft that you’ll find lining the sides of the ship. You’ll find two main types of lifeboats on many cruise ships: enclosed lifeboats and lifeboat tenders. The majority of cruise ship lifeboats are enclosed lifeboats, which are tough and built with superior watertight integrity, with the ability to easily right themselves if tossed around by rough waves.

Lifeboat tenders are partially enclosed and are designed for two main functions: to serve as a lifeboat if needed and to ferry guests from the ship to the shore during a port call where the vessel can’t dock. Lifeboat tenders are more expensive to maintain than traditional lifeboats, so cruise ships will usually have just enough lifeboat tenders to operate port tender service while the rest are the standard enclosed lifeboats.

The interior of a lifeboat includes rows of seating, which may or may not have a seatback. A steering area with windows and a hatch is located toward the top of the vessel. According to lifeboat manufacturer Fassmer, enclosed lifeboats have no windows besides those in the steering area, while lifeboat tenders have windows for viewing the surroundings from the seats. These windows do not open.

Fun fact: When Disney Cruise Line launched in the ‘90s, regulations required all cruise ship lifeboats to be orange. However, Disney wanted the exteriors of its ships to match the colors of Mickey Mouse, so it requested an exemption to paint its lifeboats yellow to match Mickey’s shoes.

The U.S. Coast Guard granted the unique request, and the lifeboats were painted in Mickey’s yellow, Pantone 99, which is a patented color that only Disney can use. Since then, other lines, such as Royal Caribbean and Costa Cruises , have painted their lifeboats yellow.

What’s the typical capacity of cruise ship lifeboats?

The maximum capacity of a cruise ship lifeboat is 150 people, according to the International Maritime Organization’s International Life-Saving Appliance Code. Most cruise ships have lifeboats that can hold this maximum number of passengers because it is easier, more cost-effective and takes up less space to have fewer large lifeboats instead of a greater number of smaller ones.

Despite the LSA’s 150-person capacity limit for lifeboats, an exception allows for larger lifeboats on some of the world’s largest cruise ships.

Related: Are cruises safe? Here’s what you need to know about cruise ship security and safety

Royal Caribbean’s massive Oasis of the Seas, which holds 8,880 passengers and crew members in total, was the first ship to use 370-person CRV55 catamaran lifeboats (or “rescue vessels”), designed and built by marine life-saving equipment company Umoe Schat-Harding. The enclosed vessels are unique in that they can be lowered directly from their storage position on the ship into the water (no moving outward needed), and passengers can board on two levels simultaneously, reducing the loading time. Their catamaran-style hull increases stability, while twin diesel engines and twin propellers allow these “mega” lifeboats to move at speeds of up to 6 knots.

On a cruise ship, there must be enough lifeboats to accommodate 37.5% of passengers and crew members on either side (75% total), according to the International Convention for the Safety of Life at Sea. What happens to the other 25%? This leads us to our next question.

Do cruise ships carry inflatable life rafts?

The remaining 25% of passengers that can’t be accommodated in the traditional lifeboats can use cruise ship inflatable life rafts. These are generally designated for crew members, while guests will board the lifeboats first — though rafts can also be used for guests if necessary.

Collapsible cruise ship life rafts are stored in fiberglass canisters and usually utilize a high-pressure gas to automatically inflate once deployed. While lifeboats have motors, life rafts do not. They do, however, have oars. Ships may also carry rigid, noninflatable life rafts, but they aren’t as common for large cruise vessels.

On newer cruise ships, life rafts may be used with a Marine Evacuation System, which utilizes a fully enclosed inflatable spiral slide to transfer passengers from the embarkation deck to an automatically inflated raft in the water.

If some lifeboats become damaged or can’t be lowered during an emergency, cruise ships have extra life rafts to pick up the slack. SOLAS requires that there are enough additional life rafts for 25% of the ship’s capacity. Cruise ships have also been designed to allow lifeboats and life rafts to deploy even if the ship is listing up to 20 degrees.

Where are lifeboats located on cruise ships?

Lifeboats are located outside on both sides of the cruise ship, typically stored on or just above one of the middle decks with an outdoor promenade so passengers can easily board them. This spot is ideal because it’s a central location for both the upper- and lower-deck cabins, as well as many public indoor and outdoor venues and amenities.

It also works because it keeps the lifeboats high enough out of the water that they won’t be in the way when the ship docks and most likely won’t be affected by rough waves. On the flip side, it keeps them low enough that they don’t have to be lowered the entire height of the ship (plus, no one wants a lifeboat view from the lido pool or their upper-deck suite).

In an emergency, passengers should not head directly to the lifeboats. Instead, every cabin is assigned an assembly station, where they will meet with crew members and be escorted to a lifeboat if an evacuation is deemed necessary. Passengers must attend a muster drill to identify their assembly station and learn about their ship’s emergency procedures. These drills must take place before a cruise ship can set sail.

Related: What is a cruise ship muster drill?

What can be found on a lifeboat?

While this list is not exhaustive, here’s most of what you’ll find on a cruise ship lifeboat, according to the LSA:

• Enough fuel to travel at 6 knots for at least a full day (24 hours)
• 48 hours’ worth of anti-seasickness medication per person
• 2 seasickness bags per person
• 3 liters of fresh water per person
• 2,390 calories’ worth of food rations per person
• Life jackets
• Enough thermal protective aid suits for 10% of the lifeboat’s capacity
• Three can openers
• First aid supplies
• Buoyant oars
• Illuminated compass
• Hand and parachute flares
• Smoke signals
• Survival manual
• One whistle
• One jackknife
• One searchlight that can work continuously for at least three hours
• Portable fire extinguishing equipment
• Fishing gear
• Tools to repair the engine

Do lifeboats have bathrooms?

Traditional 150-person lifeboats don’t have toilet facilities, but the 370-person catamaran lifeboats used on Royal Caribbean’s Oasis-class ships do.

What are other requirements for lifeboats on cruise ships?

Cruise ship lifeboats must be made of noncombustible and flame-retardant materials, according to SOLAS. Modern lifeboats are usually made of fiberglass.

All seating on the lifeboat must support a person weighing a minimum of 220 pounds. In addition, the lifeboats and the wires that move them up and down must be strong enough to allow the lifeboat to be lowered at full capacity.

How are lifeboats tested?

During the manufacturing process, lifeboats are tested using water weights, which can mimic the weight of passengers in various spots around the vessel. These water weights are pumped to fill and drain with water remotely. They’re placed in various spots in the lifeboat throughout the testing period to gather data on how the watercraft would handle passenger weight in various locations and scenarios.

Once a lifeboat is delivered to the shipyard for installation on a ship, the inspections and tests do not stop. Throughout the life of the cruise ship, time, weather and use all mean that — like with any type of equipment — things on the lifeboats will degrade and endure wear and tear over time. This is why SOLAS includes requirements for regular lifeboat drills and inspections.

Related: 15 cruise ship rules you shouldn’t break

Cruise crew members conduct weekly and monthly lifeboat inspections and undergo periodic training so lifeboat operations stay fresh in their minds.

A more thorough inspection — by either a certified lifeboat technician from an independent company or an inspector from the lifeboat manufacturer itself — occurs annually. According to the International Maritime Organization, this process includes an inspection of these key components:

• The hull is inspected for cracks, damage or other defects.
• The propulsion system, including the engine, is inspected to ensure it’s in good working condition. The cooling, exhaust and fuel systems are also examined.
• The electrical system, including the battery, charging, lighting and communications systems, are checked for defects or malfunctions.
• The maneuvering system is inspected, including the steering mechanism, the rudder and other steering gear.
• Lifeboat equipment, such as life jackets and survival equipment, is examined to ensure it’s in good condition.
• The davit and winch system, including the winch and wire ropes, are checked for defects or damage.
• The lifeboat undergoes a load test to ensure that it can withstand its maximum weight of crew and passengers.

Any equipment or systems found to have defects or deficiencies during the inspection are either repaired or replaced.

Bottom line

The chances of passengers ever experiencing an emergency on a cruise that requires abandoning ship via lifeboats is extremely slim. Still, it’s good to know your ship is outfitted with safety equipment to give you peace of mind when taking your next cruise.

Planning a cruise? Start with these stories:

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Carnival cruise ships by size: Here are the largest Carnival cruise ships, biggest to smallest, by tonnage

What is the biggest Carnival cruise ship? Currently, the largest Carnival ship is Carnival Jubilee, in terms of both tonnage and passenger capacity. Set to debut in late 2023, it will tie sister ship Carnival Celebration, which first set sail in 2022, at 183,521 gross tons and 5,374 passengers at double occupancy.

It's easy to remember that, generally, the newest ships are the largest Carnival ships. However, because Carnival Cruise Line has more than two dozen vessels in its fleet, it can be difficult to keep track of the ships that fall in between the newest and oldest.

So, to help you out, here is a list of Carnival ships, biggest to smallest, based on tonnage — a ship's internal capacity, as measured by volume.

For more cruise guides, news and tips, sign up for TPG's cruise newsletter .

Carnival cruise ships by size

1. carnival jubilee.

Size: 183,521 gross tons. Passenger capacity : 5,374. Maiden voyage: 2023.

2. Carnival Celebration

Size: 183,521 gross tons. Passenger capacity : 5,374. Maiden voyage: 2022.

3. Mardi Gras

Size: 180,800 gross tons. Passenger capacity : 5,282. Maiden voyage: 2021.

4. Carnival Venezia (formerly Costa Venezia)

Size: 135,225 gross tons. Passenger capacity : 4,072. Maiden voyage: 2019 (renamed in 2023).

5. Carnival Firenze (formerly Costa Firenze)

Size: 135,156 gross tons. Passenger capacity : 4,126. Maiden voyage: 2021 (renamed in 2024).

6. Carnival Panorama

Size: 133,500 gross tons. Passenger capacity : 4,008. Maiden voyage: 2019.

7. Carnival Horizon

Size: 133,500 gross tons. Passenger capacity : 3,960. Maiden voyage: 2018.

8. Carnival Vista

Size: 133,500 gross tons. Passenger capacity : 3,934. Maiden voyage: 2016.

9. Carnival Breeze

Size: 130,000 gross tons. Passenger capacity : 3,690. Maiden voyage: 2012.

10. Carnival Magic

Size: 130,000 gross tons. Passenger capacity : 3,690. Maiden voyage: 2011.

11. Carnival Dream

Size: 130,000 gross tons. Passenger capacity : 3,646. Maiden voyage: 2009.

12. Carnival Splendor

Size: 113,300 gross tons. Passenger capacity : 3,012. Maiden voyage: 2008.

13. Carnival Freedom

Size: 110,000 gross tons. Passenger capacity : 2,980. Maiden voyage: 2007.

14. Carnival Valor

Size: 110,000 gross tons. Passenger capacity : 2,980. Maiden voyage: 2004.

15. Carnival Glory

Size: 110,000 gross tons. Passenger capacity : 2,980. Maiden voyage: 2003.

16. Carnival Conquest

Size: 110,000 gross tons. Passenger capacity : 2,980. Maiden voyage: 2002.

17. Carnival Liberty

Size: 110,000 gross tons. Passenger capacity : 2,974. Maiden voyage: 2005.

18. Carnival Sunshine (formerly Carnival Destiny)

Size: 102,853 gross tons. Passenger capacity : 3,002. Maiden voyage: 1996 (overhauled and renamed in 2013).

19. Carnival Radiance (formerly Carnival Victory)

Size: 101,509 gross tons. Passenger capacity : 2,984. Maiden voyage: 2000 (overhauled and renamed in 2021).

20. Carnival Sunrise (formerly Carnival Triumph)

Size: 101,509 gross tons. Passenger capacity : 2,984. Maiden voyage: 1999 (overhauled and renamed in 2019).

21. Carnival Luminosa (formerly Costa Luminosa)

Size: 92,720 gross tons. Passenger capacity : 2,260. Maiden voyage: 2009 (overhauled and renamed in 2022).

22. Carnival Miracle

Size: 88,500 gross tons. Passenger capacity : 2,124. Maiden voyage: 2004.

23. Carnival Legend

Size: 88,500 gross tons. Passenger capacity : 2,124. Maiden voyage: 2002.

24. Carnival Pride

25. Carnival Spirit

Size: 88,500 gross tons. Passenger capacity : 2,124. Maiden voyage: 2001.

26. Carnival Paradise

Size: 71,925 gross tons. Passenger capacity : 2,124. Maiden voyage: 1998.

27. Carnival Elation

Size: 71,909 gross tons. Passenger capacity : 2,190. Maiden voyage: 1998.

What is the biggest Carnival ship?

The biggest Carnival ships are Carnival Celebration (2022) and Carnival Jubilee, which will set sail for the line in late 2023. They're tied in terms of size, each coming in at 183,521 gross tons and carrying 5,374 passengers at capacity.

Both vessels are throwback ships, which are named after two members of Carnival's original fleet. They feature cutting-edge entertainment, luxury cabin options, a slew of cuisine choices, onboard breweries, tons of lounge areas and top-deck amusements — ropes courses, waterslides and even roller coasters — that rival what you might find at an amusement park.

What is the smallest Carnival ship?

The smallest Carnival cruise ship is Carnival Elation, the line's second-oldest vessel. At 71,909 gross tons, it carries just 2,190 passengers — less than half the amount accommodated on ships in Carnival's Excel class.

Are bigger Carnival ships coming?

At the time of publication, Carnival Cruise Line was building its newest ship, Carnival Jubilee. It's one of two vessels — including its older sister Carnival Celebration — that shares the "biggest Carnival ship" title.

After Carnival Jubilee, the line has no ships on order for the first time in years.

What is the Carnival Jubilee tonnage?

Carnival Jubilee is 183,521 gross tons. Not to be confused with weight, gross registered tonnage measures a ship's size in terms of internal volume and what a vessel can hold or contain. Each gross registered ton is equal to 100 cubic feet of space.

What's the difference between big and small Carnival ships?

One of the biggest differences is that Carnival's tiniest ships carry between 2,100 and 3,000 passengers, while its biggest can accommodate more than 5,000 people. In addition, the largest vessels measure more than 180,000 gross tons, while the smallest measure less than 90,000 gross registered tons.

Smaller ships don't have space to offer as many attractions as huge vessels, but Carnival invested $500 million over five years to make its fleet more uniform, regardless of ship size.

Thanks to this initiative, all ships now feature venues including Alchemy Bar, Guy's Burger Joint by Guy Fieri — now a staple, along with barbecue and microbrewed beer on some ships — and the Punchliner Comedy Club, among other popular amenities that are now Carnival hallmarks.

Besides the obvious size differences between big and small cruise ships, smaller ships also tend to be older than their larger counterparts.

Decor is a dead giveaway to the age of a Carnival ship. Older hardware boasts interiors designed by Joe Farcus, a renowned architect known for his kitschy, fun style that employs bright colors, whimsical art installations and neon lights. (He's also responsible for the line's iconic "whale tail" funnels.) Newer vessels tend to have a more toned-down look.

Finally, fares are a factor. The smaller the ship, the more likely it is to sail short, affordable itineraries. Major exceptions to this rule are Carnival Journeys voyages, which are offered a few times each year and feature extended itineraries of two weeks or longer.

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The best new cruises in the world: 2024 Hot List

By CNT Editors

It’s inevitable: every spring when we pull together the Hot List, our annual collection of the world’s best new hotels, restaurants, and cruise ships, a staffer remarks that this latest iteration has got to be the best one ever. After a year’s worth of travelling the globe – to stay the night at a converted farmhouse in the middle of an olive grove outside Marrakech or sail aboard a beloved cruise line’s inaugural Antarctic voyage – it’s easy to see why we get attached. But this year’s Hot List, our 28th edition, might really be the best one ever. It’s certainly our most diverse, featuring not only a hotel suite that was once Winston Churchill’s office, but also the world’s largest cruise ship and restaurants from Cape Town to Bali . We were surprised and inspired by this year’s honorees, and we know you will be too. These are the Hot List cruise winners for 2024.

Celebrity Ascent, Celebrity Cruises

Celebrity is a premium big-ship cruise brand, focusing on exquisite dining, cutting-edge amenities, Instagram-worthy public spaces chock-full of bespoke art pieces, and avant-garde onboard entertainment. The ship makes passengers feel, in a word, glamorous. Celebrity Ascent’s sumptuously designed interiors are flooded with natural light and evoke an air of playful sophistication that makes a week on board an escape worth cherishing. Passengers may find themselves longing to return for just one more succulent crab claw at Raw on 5, one more martini poured by bottle-spinning bartenders in the Martini Bar, or one more dazzling, acrobatic stage show, in the days following their farewells to this beautiful ship. From around £574 per person for a seven-night sailing. Scott Laird

Emerald Sakara, Emerald Cruises

Now with two oceangoing vessels joining Emerald’s more established fleet of nine river-dedicated “Star-Ships,” the decade-old cruise line is extending a brand built on unpretentious luxury to more corners of the world. Christened last August , the 100-guest superyacht, Sakara, is a near twin to Azzurra, which in 2022 ushered in a new era for Emerald by taking to the high seas. Sakara, like its sister, delightfully blurs the line between the luxury and ultra-luxury cruise categories, offering attentive service, gourmet cuisine, tasteful decor, and an eclectic slate of activities at a price point friendly to more budgets. The cherry on top with both superyachts is a slew of perks atypical of small-ship sailing, ranging from an impressively comprehensive spa to a marina platform well equipped for more fun in the sun. Despite having so much good stuff, each vessel is remarkably spacious. Getting a sense of being on a private yacht is easy like Sunday morning. Sakara is homeported in the Caribbean and the Mediterranean through at least March 2026; Azzurra, too, in addition to the Middle East, Kenya, and the Seychelles . Emerald’s river operations are based in Europe and Southeast Asia. (Note that a third ship, the Kaia, has just been announced by the cruise line; it debuts in April 2026, and, for all the early birds, it is now open for bookings.) From around £3,112. David Dickstein

Explora I, Explora Journeys

With a showpiece lobby bar, upscale restaurants, and a sultry infinity pool, Explora Journeys' relaxed luxury-resort-at-sea vibe strikes the perfect balance on Explora I. Launched in August 2023, the all-inclusive ship is disarmingly beautiful. A sleek navy blue exterior cocoons 461 suites, all with deep balconies, walk-in closets, and marble bathrooms. There is free-flowing Champagne, 7,500 square feet of wellness space, and 18 drinking and dining venues. From Emporium Marketplace, with its decadent raw bar, to pan-Asian restaurant Sakura, the dining on Explora I is sensational. Marble & Co. Grill is an intimate steakhouse where ageing meats hang in temperature-controlled cabinets. At Anthology, the ship's only supplementary restaurant, guest chefs – such as Claude Le Tohic of San Francisco's O' by Claude Le Tohic – curate sublime tasting menus. There's more: The only Rolex boutique at sea, huge hot tubs, and a shore program that sees some land experiences developed in partnership with revered explorer Mike Horn. From around £564 per person per night. Kerry Spencer

Icon of the Seas, Royal Caribbean International

Aboard the Icon, you can really get lost. The behemoth is just plain big, with a capacity for nearly 8,000 when combining passengers and crew across 20 decks and 250,800 gross tons. Two and a half laps around the ship’s jogging track, a particular highlight onboard, and you’ve run a mile. So one can find themselves in need of a map – forgetting your sunscreen , for example, in your cabin is a bit of a chore depending on how far you’ve made it. But the abundance of things to do is also narcotic, and you feel a bit like a lotus-eater attempting to navigate it all while keeping your head. Amid the relentless entertainment, not to be missed are the top-notch performers present everywhere, from the Olympic-level aquatics show that you can watch from the windows of the speciality seafood restaurant should seating be elusive (it often is) to the cafeteria, where crewmembers dressed as food items sing songs reminding (commanding, actually, which is fabulous) passengers to wash their hands at sinks near the entrance. If you wish to enjoy the largest waterpark at sea, by the way, do what I did not and pack a swimsuit without zippers. From around £1,818 . Charlie Hobbs

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MSC Euribia, MSC Cruises

Looking at a row of cruise ships in port, you'll spot MSC Euribia right away. She's covered bow to stern by an ocean-themed mural by German artist Alex Flämig that bears the hashtag #SaveTheSeas nodding to the MSC's dedication to sustainable cruising: the Italian cruise line aims to be net-zero by 2050. MSC Euribia brings it one step closer to that goal, as it's the fleet's greenest ship yet, operating on liquified natural gas (LNG) and running advanced water and waste treatment systems onboard. But enough with the technical details – this mega-ship is packed with activities and entertainment, with 10 restaurants, 21 bars, five pools, two performance venues, and a bevvy of family-friendly amenities, like an F1 simulator, a waterpark, and a bowling alley. More adult-oriented highlights include the MSC Aurea Spa, with a thermal suite outfitted with thalassotherapy pools, a salt cave, and a snow room, as well as the Helios Wine Maker bar for wine tastings. Itineraries from around £420. Stefanie Waldek

Norwegian Viva, Norwegian Cruise Line

The second entry in Norwegian Cruise Line’s new Prima Class, Viva is like an Irish twin of older sister Prima. There’s the same stateroom count at 1,586, done in pristine and pleasing neutrals, as well as familiarly tricked-out amenities like the zippy 1,400-foot go-kart racing track that undulates over-the-top decks. Importantly, the Ocean Walk, which my colleague Mercedes Bleth adored aboard the Prima, remains. But round two afforded the premier name in large-ship cruising a chance to tweak and perfect, with an influx of seating options both in the ship’s complimentary dining hall as well as on its myriad decks. Across from the signature “zero-waste” Metropolitan Bar, where yummy drinks are whipped up from the ship’s food waste (I particularly enjoy a buttery Croissant Mai-Tai, for which hardening pastries are boiled down into sweetening syrup; the same is done with banana peels) is an interactive piece of digital art 52 feet wide that sees butterflies flit beside passersby. Breezy class all around. From around £791. Charlie Hobbs

Oceania Vista, Oceania Cruises

Vista, Oceania’s first new ship in more than a decade and the first of its Allura Class, debuted with small but mighty upgrades to its previous ships: better stabilisers for a smoother sailing experience; stronger Wi-Fi; lighting and architecture designed to make the ship’s common spaces look and feel roomier; a resort-like pool deck; and balconies in every cabin. The real star of the show, though, is the food and beverage experience – Vista’s culinary program delivers on its promise of top-quality venues you’ll want to make the rounds at. New to the lineup are Ember, a steakhouse with decor straight out of Napa Valley , and Aquamar Kitchen, serving up lighter fare that doesn’t skimp on taste. Celebrate a birthday, an anniversary, or a just-because occasion with the Cellar Masters Wine Luncheon, a five-course meal and wine pairing. And don’t miss the elaborate sea day brunch, where towers of lobster, crab, and caviar await. Of course, the ship is just one destination. This year, Vista is splitting time between the Mediterranean and the Caribbean; next year, it will venture farther into Europe with ports of call like Istanbul , Stockholm, and Klaipeda, Lithuania. Its sister ship, Allura, sets sail in 2025. From around £2,182. Madison Flager

Scenic Eclipse II, Scenic Luxury Cruises and Tours

The eagerly awaited Scenic Eclipse II is the new and improved version of Scenic's first expedition vessel, Scenic Eclipse. Dubbed "discovery yachts" for their sleek look and top-tier service, the sisters are nearly identical, with most changes so subtle that most guests might not even notice them, such as the slight enlargement of the steam room in the spa. But a big difference can be found on deck 10, where a plunge pool with jets for simulated lap swimming has taken the place of two hot tubs – and there's a new Sky Bar up here. Otherwise, Scenic Eclipse II has the same beloved amenities of its sister, most notably 10 exceptional dining experiences, from a sushi bar to a French restaurant with an attached Champagne bar; a 5,920-square-foot spa; two helicopters; and a submersible. Capable of sailing all over the world, including the polar regions, Scenic Eclipse II has itineraries for every type of traveller. From around £6,025. Stefanie Waldek

Seabourn Pursuit, Seabourn Cruise Line

Pursuit is a small, “yacht-like” expedition ship with a distinct green exterior whose destinations range from Antarctica to warmer climes like the Kimberley in Australia. The decadent cabins, bigger than some standard hotel rooms, feel spacious and relaxing, complete with all the subtle touches that make you feel immediately at home. You can hang your evening attire in the walk-in closet and dry your wet swimwear – or damp Arctic expedition gear – in the built-in warming compartment; have sunrise breakfasts or sunset cocktails mixed at the in-room wet bar on your private balcony; and sleep in a plush, queen-sized bed. But what truly sets this cruise apart is the attentive and personable staff who quickly learn your name and personal preferences, providing VIP treatment throughout the journey. From around £8,729. Taylor Eisenhauer

Seven Seas Grandeur, Regent Seven Seas Cruises

Ports in the Caribbean, the Greek islands , and the Riviera might be the draw, but the all-inclusive luxury line Regent Seven Seas Cruises produces ships that have travellers looking forward to those days at sea, as its sixth offering, Grandeur, further proves. All of the 372 suites, which start at a roomy 307 square feet, are decorated in calming neutral blues and beige, and feature furnished balconies; most have L'Occitane bubbles for the marble tub. Quiet comfort can also be had in the Serene Spa & Wellness outdoor lounge area, following a massage on a quartz crystal bed that mimics the feel of warm sand. Cravings for a porterhouse or a vegetarian Salisbury steak can be sated by Prime 7, with other venues serving speciality pan-Asian cuisine, French fare, ample buffets, and Italian offerings. Mainstay Compass Rose has been reimagined as a light, airy space where diners breakfast under playfully elegant pillars that resemble crystal trees. Grandeur's whimsy extends to its reception area, where guests can check out Journey in Jewels, the Fabergé egg made specifically for the vessel, where it will remain for the rest of its jewelled ovoid days. The maximum number of 744 guests ensures unhurried service and uncrowded environs as you recover from a sunny day of swimming with Caribbean pigs. From around £3798. Alexandra Sanidad

Silver Nova, Silversea Cruises

A voyage on Silversea’s latest ship, Silver Nova, is one of taste and style. With expansive glass features throughout each of the 11 decks, and an ocean-facing saltwater swimming pool , the ship’s unique asymmetrical design leaves room for adults to run and play (with swank, of course). The Nova’s reimagined culinary experience, SALT (Sea and Land Taste), is the first large-scale, regional restaurant at sea, and acts as an invitation to guests to experience more than an excursion. While initially introduced on Silver Moon, the Nova’s SALT program includes SALT Lab by day: an intimate cooking class with highly acclaimed chefs and regional cuisine recipes inspired by the next destination. With one nightly seating, SALT Chef's Table offers an exclusive and creatively interactive dining experience. It’s all very intimate – as chefs showcase the art of their crafts firsthand, guests peek into a new culture and place before even disembarking. From around £2465. Jessica Chapel

Viking Aton, Viking River Cruises

In the style of all Viking ships, the Rottet Studio – designed Aton is intended for comfortable and thought-provoking exploration – just look to the book-filled shelves in the cabins, curated by London’s Heywood Hill library, and the revolving door of on-board lecturers (on my trip, an English curator spoke about the evolving depictions of Egypt in 1900s popular art). It should be no surprise that in a destination as rich and storied as Egypt ’s Nile, where the Aton is permanently based, the guides set apart what may read as a quintessential itinerary. On the Pharaohs & Pyramids journey, which takes travellers from the Valley of the Kings, where King Tut lies, to the Great Pyramid of Giza and well beyond over 12 days, esteemed Egyptologists oscillate from translating hieroglyphics on temple walls in real-time to shepherding travellers through modern night markets with endless fervour. On this ship it isn’t just what you see but how much you listen – and the team here, predominantly Egyptian, has much to say. These days, travellers crave perspective-altering experiences more than ever; get on the Aton, and you’ll get once-in-a-lifetime access (until that is, your next Aton sailing). From around £4849. Megan Spurrell

Resilient Lady, Virgin Voyages

Stepping onto Resilient Lady feels a bit like heading to summer camp. The massive vessel is like a giant playground for adults, which is why it draws a fun-loving crowd. Theme night parties, a nostalgic arcade room, plenty of board games, and basketball courts are just a few of the seemingly limitless onboard activities. Compared with its sister ships, the newest Virgin Voyages addition includes upgraded onboard entertainment and exciting new ports of call like the Greek Islands, Bali, and Mumbai . Most of the shows on this specific ship are new to the line, such as Persephone, an interactive performance developed in collaboration with famed Brooklyn nightclub House of Yes, and Another Rose, an immersive dinner experience. Dining options are abundant on the ship – 20-plus to be exact – and all of them are included with every passenger ticket. Plus, you can’t miss out on a visit to the several different sauna experiences in the Thermal Suite inside the Redemption Spa. From around £1616 . Rachel Dube

World Voyager, Atlas Ocean Voyages

There are superbly comfortable spaces and floor-to-ceiling windows aplenty on World Voyager, the latest vessel from Atlas Ocean Voyages. On an Antarctica expedition, you might watch turquoise icebergs float by from the sauna or the spa’s relaxation room, with its heated loungers perfectly positioned in front of a wall of glass. Back in your cosy stateroom, Champagne and strawberries await, as do the views from a Juliet or walkout balcony. The look throughout the 100 cabins and public spaces is Scandinavian modern, thanks to blond woods, marble floors, plush carpets in geometric patterns, and curvaceous furniture draped in velvety fabrics. In the elegant dining room, the focus is on international cuisine with a farm-to-table slant – think mushroom risotto and smoked duck with chargrilled vegetables. Meanwhile, the multipage cocktail menu beckons guests to a pair of spacious lounges. Blending yacht-style elegance and boutique-resort intimacy, this is a ship where you can make new friends easily but also retreat to a favourite spot to enjoy high tea in peaceful solitude while awaiting details from the crew on the adventures that lie ahead. From around £1495. Celeste Moure

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