Harmony of the Seas is one of the world's largest cruise ships, operated by Royal Caribbean International since 2016. This Oasis-class vessel measures 362 meters in length with a gross tonnage of 226,963 GT, accommodating up to 6,400 passengers and 2,394 crew members across 17 decks. Built in France at a cost of $1.35 billion, the ship features advanced energy-efficient technology including air bubble systems that reduce fuel consumption by 7-8%. The vessel is divided into seven distinct neighborhoods and offers over 2,745 cabins for guests.
The ship provides extensive entertainment and dining options with approximately 20 restaurants, a 1,400-seat theater, and thrilling attractions like the Ultimate Abyss—the tallest slide at sea plunging 10 stories. Family-friendly amenities include Splashaway Bay aqua park with 23 water facilities, two surf simulators, six outdoor pools, rock climbing walls, ice rink, and bowling alley. Additional features encompass a hand-carved carousel, zipline, mini-golf, casino, spa, and an impressive art collection of over 11,000 works. The ship operates primarily as a premier family cruise vessel, designed to cater to all age groups with both high-energy adventures and luxury relaxation options.

Complimentary Dining Options
Cafe Promenade
Grab a slice of pizza or a sandwich at the Cafe Promenade, or indulge in some Ben & Jerry's ice cream.
Dog House
Grab a hot dog at the Dog House.
Main Dining Room
The main dining room is a multi-course dining experience with a menu that changes nightly.
Mini Bites
Grab a snack at Mini Bites.
Park Cafe
Grab a sandwich or a salad at the Park Cafe.
Solarium Bistro
The Solarium Bistro is a healthy dining option with a menu that changes daily.
Sorrento'
Grab a slice of pizza or a sandwich at Sorrento's.
Windjammer
The Windjammer is a buffet with a wide variety of food options.
Speciality Dining Options
150 Central Park
150 Central Park is a restaurant with a menu that changes nightly.
Chef's Table
The Chef's Table is a private dining experience with a five-course menu and wine pairing.
Chops Grille
Chops Grille is a steakhouse with a menu that includes filet mignon and New York strip steak.
Coastal Kitchen
Coastal Kitchen is a restaurant with a menu that changes daily.
Izumi
Izumi is a Japanese restaurant with a menu that includes sushi and hibachi.
Jamie's Italian
Jamie's Italian is an Italian restaurant with a menu that includes pasta and pizza.
Johnny Rockets
Johnny Rockets is a burger restaurant with a menu that includes burgers and milkshakes.
Sabor Taqueria and Tequila Bar
Sabor Taqueria and Tequila Bar is a Mexican restaurant with a menu that includes tacos and margaritas.
Starbucks
Grab a coffee or a pastry at Starbucks.
Wonderland
Wonderland is a restaurant with a menu that changes nightly.
Amenities
7 Neighborhoods
Explore the seven unique neighborhoods onboard, each offering a distinct experience.
Adventure Ocean
Adventure Ocean is a kids club with activities for kids of all ages.
Library and Card Room
The Library and Card Room is a library with a wide variety of books.
Carousel
The Carousel is a carousel with a wide variety of rides.
Casino Royale
Casino Royale is a casino with slot machines, table games, and tournaments.
Conference Center
The conference center is a conference center with a wide variety of meeting rooms.
Fitness Center
The Fitness Center is a fitness center with a wide variety of fitness equipment.
FlowRider Surf Simulator
The FlowRider Surf Simulator is a surf simulator that lets you surf or boogie board.
Focus and Picture This
Focus and Picture This are photo galleries with a wide variety of photos.
Fuel Teen Disco
The teen disco is a disco for teens with music and dancing.
Jogging Track
The Jogging Track is a jogging track that goes around the ship.
King of the World
King of the World is a viewing platform offering breathtaking views of the ocean.
Library
The Library is a library with a wide variety of books.
Mini Golf
The mini golf course is a 9-hole mini golf course.
On Air Club
On Air Club is a karaoke lounge where you can sing your favorite songs.
Outdoor Pools
The Outdoor Pools are a pool area with a pool and two hot tubs.
Ping Pong Tables
Enjoy a game of ping pong with friends and family.
Puzzle Break
Puzzle Break is an escape room experience where you solve puzzles to escape.
Rock Climbing Wall
The rock climbing wall is a 30-foot rock wall with five different routes.
Royal Theater
The Royal Theater is a theater with Broadway-style shows and other performances.
Solarium
The Solarium is an adults-only pool area with a pool and two hot tubs.
Splashaway Bay
Splashaway Bay is a kids water park with a wide variety of water slides.
Sports Court
The Sports Court is a full-size basketball court.
Studio B
Studio B is an ice skating rink with open skating and ice shows.
The Back Deck
The Back Deck is a relaxing outdoor space with stunning ocean views.
Living Room
The Living Room is a lounge with a wide variety of entertainment.
The Perfect Storm
The Perfect Storm is a water slide complex with three water slides.
Ultimate Abyss
The Ultimate Abyss is a 10-story dry slide that goes around the ship.
Video Arcade
The video arcade is an arcade with a wide variety of games.
Vitality at Sea Spa
The Vitality at Sea Spa is a spa with a wide variety of treatments.
Whirlpools
The Whirlpools are a pool area with a pool and two hot tubs.
Zip Line
The Zip Line is a zip line that goes across the ship.
Frequenty Asked Questions
What is the Harmony of the Seas?
Harmony of the Seas stands as one of the world's largest cruise ships, operated by Royal Caribbean International since 2016. This massive vessel belongs to the Oasis-class family and represents a floating city that can accommodate thousands of passengers. Built by Chantiers de l'Atlantique in Saint-Nazaire, France, the ship cost approximately $1.35 billion to construct.
The ship measures an impressive 362 meters (1,188 feet) in length with a gross tonnage of 226,963 GT. What makes this vessel truly remarkable isn't just its size—it's the engineering marvel that allows such a massive structure to glide through the ocean at speeds of 22-23 knots.
How many people can Harmony of the Seas accommodate?
The passenger capacity varies depending on cabin occupancy. At double occupancy, Harmony of the Seas welcomes approximately 5,497 guests. However, when cabins reach maximum capacity, the ship can carry around 6,400 passengers. Supporting this floating community are about 2,394 crew members who work across the ship's 2,745 cabins.
These numbers place Harmony of the Seas among the most populated vessels at sea. The crew-to-passenger ratio ensures adequate service levels, though the sheer scale means you'll encounter plenty of fellow travelers during your voyage.
What dining and entertainment options are available?
Dining Venues
Harmony of the Seas features approximately 20 dining venues, ranging from casual grab-and-go options to upscale specialty restaurants. The variety ensures every palate finds something appealing, whether you're craving sushi, steaks, or comfort food classics.
Entertainment Facilities
The ship houses a magnificent 1,400-seat theater where Broadway-style productions come to life. Beyond the main theater, entertainment spreads throughout the vessel's seven distinct neighborhoods, including the famous Central Park and Boardwalk areas.
The ship's art collection deserves special mention—over 11,000 works adorn corridors, lounges, and public spaces, essentially creating a floating museum that passengers can explore throughout their journey.
What water attractions and activities does the ship offer?
Water Features
Harmony of the Seas transforms into a water wonderland with its extensive aquatic offerings. The ship boasts six outdoor pools and 10 whirlpools scattered across different decks. The crown jewel remains the Ultimate Abyss—the tallest slide at sea, plunging adventurous guests down 10 stories.
For families, Splashaway Bay creates the perfect aqua park experience with 23 different water facilities. This area alone requires roughly 2,350 tons of water to operate. Two FlowRider surf simulators let guests practice their surfing skills, while The Perfect Storm waterslides (Typhoon, Cyclone, and Supercell) provide adrenaline-pumping thrills.
Land-Based Activities
The ship doesn't limit itself to water fun. Rock climbing walls challenge fitness enthusiasts, while an ice rink offers skating opportunities regardless of the tropical weather outside. Guests can also enjoy bowling, zipline adventures, mini-golf, and various sports courts.
A jogging track provides space for morning runs with ocean views, and the hand-carved carousel adds a whimsical touch that delights children and adults alike.
What makes Harmony of the Seas environmentally efficient?
Despite its enormous size, Harmony of the Seas incorporates several green technologies. The ship operates 20% more efficiently than earlier Oasis-class vessels, thanks to innovative air bubble technology along the keel. This system reduces drag and cuts fuel consumption by 7-8%.
Wärtsilä engines produce approximately 128,738 horsepower, with propulsion power reaching about 110,000 horsepower. The vessel also features waste heat recovery engines, LED and fluorescent lighting systems, and Azipod propulsion units that reduce both environmental impact and operational noise.
What are the ship's unique neighborhoods?
Harmony of the Seas divides its space into seven distinct neighborhoods, each offering different atmospheres and experiences. Central Park brings the outdoors inside with real plants and trees, creating a peaceful oasis amid the bustling ship activities.
The Boardwalk neighborhood captures the spirit of an old-fashioned seaside pier, complete with carnival games and casual dining. These themed areas help break up the ship's massive scale, creating intimate spaces within the larger vessel.
What amenities cater to different passenger preferences?
Family-Friendly Features
Royal Caribbean designed Harmony of the Seas as a premier family cruise ship. Children's play areas provide safe spaces for younger guests, while teen clubs offer age-appropriate activities for adolescents.
Adult Spaces
Adults seeking quieter experiences can retreat to adult-only lounges and deck areas. The spa and fitness center provide wellness-focused retreats, while the casino offers gaming excitement for night owls.
General Amenities
The ship includes a chapel for special ceremonies, video arcades for gaming enthusiasts, hair salons and spas for pampering sessions, and a library for those who prefer quieter pursuits. Multiple passenger promenades encourage leisurely strolls with ocean views.
How does Harmony of the Seas compare to its sister ships?
Harmony of the Seas belongs to the Oasis-class "Plus" series, sharing design elements with sister ships including Allure of the Seas, Oasis of the Seas, Symphony of the Seas, Wonder of the Seas, and the upcoming Utopia of the Seas.
While these vessels share similar layouts and concepts, each ship incorporates unique features and improvements. Harmony of the Seas represented a significant advancement in energy efficiency when launched, setting standards that influenced later vessels in the fleet.
When was the ship last updated?
The most recent major refurbishment program ran from 2021 to 2026, focusing on updating facilities and incorporating newer technologies. These improvements ensure the vessel remains competitive and continues meeting evolving passenger expectations.
Regular maintenance and updates keep Harmony of the Seas current with industry standards while preserving the features that made it famous worldwide.