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IMO: 9682875

Harmony of the Seas

Technical specifications, historical timeline, and comprehensive venue inventory.

Ship Overview → Fleet Overview →
Harmony of the Seas — exterior view

The Blueprint

Ship Class
Oasis-class
Gross Tonnage (GT)
226,963
Length (FT / M)
1,188 / 362.12
Beam (FT / M)
156 / 47.42
Decks (Passenger / Total)
16 / 18
Shipyard
Chantiers de l'Atlantique, Saint-Nazaire, France
Registry
Bahamas
Godparent(s)
Brittany Affolter
LNG Powered
No
Build Cost
$1,350,000,000
Class Sisters: Allure of the SeasOasis of the SeasSymphony of the SeasUtopia of the SeasWonder of the Seas

Timeline & Evolution

Inaugural Sail Year
2016
Major Refurbishments
2026
Significant Changes
  • 2026: Royal Amplified modernization: redesigned Caribbean-inspired pool deck, refreshed adults-only Solarium, the largest Casino Royale in the fleet, and new venues including Samba Grill Brazilian Steakhouse, El Loco Fresh, Playmakers Sports Bar & Arcade, the Pesky Parrot bar and The Lime and Coconut.

Registry & Build Record

IMO Number
9682875
MMSI
311000396
Call Sign
C6BX8
Classification Society
DNV
Hull / Yard Number
A34
Maiden Voyage
29 May 2016
Maximum Draft
9.322 m (30.6 ft)
Maximum Beam
66.0 m (216.5 ft)

Capacity & Space

Double Occupancy
5,479
Maximum Capacity
6,780
Total Crew
2,300
Passenger-to-Crew Ratio
2.38:1
Space Ratio
41.42

Onboard Inventory

Swimming Pools
3
Hot Tubs / Whirlpools
11
Waterslides
3
Bars & Lounges
21
Complimentary Dining Venues
9
Specialty Dining Venues
6
À la Carte Dining
2
Elevators
24*

* Unofficial count — the cruise line publishes no official total for this figure.

Power & Propulsion

Propulsion
Diesel-electric with azimuthing pods
Fuel Type
Marine diesel oil
Azipod Units
3
Installed Power
96 MW (128,738 hp)
Propulsion Power
60 MW (80,461 hp)
Maximum Speed
25 Knots
Engine Configuration
4x Wartsila 12V46F + 2x Wartsila 16V46F

Logistics

Cruising Speed
22 Knots
Medical Center
Deck 2
Elevator Banks
Forward
Decks 1-16
Aft
Decks 1-16
Upper decks
Decks 17-18
Designated Smoking Zones
  • Casino Royale
    casino
    Location: Deck 4
    Smoking permitted in designated sections of the casino during operating hours; the casino has both smoking and non-smoking areas with visible signage. Policy varies by departure country: no casino smoking on UK/Australia-departure sailings; no non-smoking section on China/Hong Kong-departure sailings.
  • Pool Deck (designated side)
    outdoor
    Location: Pool deck, designated seating/ashtray area on one side only (which side varies by ship/sailing and is announced via the onboard Cruise Compass, not pre-published)
    Smoking permitted only in the designated seating/ashtray area on one side of the pool deck; not permitted elsewhere on the pool deck, near food venues, the upper jogging track, or the Solarium.

Cabin Summary

Total: 2,875
Solo Configured: 15
ADA Compliant: 46
Suites
205
Balcony
1,791
Oceanview
188
Inside
691
The Apex Suite
Royal Loft Suite
1,530 SQ FT

A two-level duplex apartment with floor-to-ceiling windows, a private balcony with a Jacuzzi, and sweeping ocean views - the largest suite onboard at 1,530 square feet plus an 850-square-foot terrace.

Stateroom Taxonomy

Suites
  • Junior Suite70
  • Crown Loft Suite57
  • Grand Suite - 1 Bedroom42
  • Owner's Suite - 1 Bedroom12
  • Sky Junior Suite8
  • Star Loft Suite4
  • Grand Suite - 2 Bedroom4
  • Spacious AquaTheater Suite - 1 Bedroom3
  • Spacious AquaTheater Suite - 2 Bedroom2
  • Royal Loft Suite2
  • Villa Suite - 4 Bedroom1
Balcony
  • Ocean View Balcony1,305
  • Central Park View Balcony258
  • Boardwalk View Balcony221
  • Ultra Spacious Ocean View with Large Balcony7
Oceanview
  • Ocean View180
  • Ultra Spacious Ocean View8
Inside
  • Interior462
  • Interior with Virtual Balcony70
  • Connecting Interior68
  • Central Park View Interior62
  • Promenade View Interior24
  • Spacious Interior5

Cabin details & Prodigy Picks on the ship overview →

Features & Amenities

Family & Youth

  • Kids Club
  • Teen Club
  • Nursery
  • Waterpark
  • Mini Golf
  • Sports Court

Adults & Wellness

  • Adults Only Area
  • Spa
  • Thermal Suite
  • Casino

Entertainment & Culture

  • Production Theater
  • Art Gallery
  • Laser Tag

Thrills & Active

  • Zip Line
  • Climbing Wall
  • Surf Simulator
  • Ice Skating Rink

Staterooms & Service

  • Dedicated Solo Staterooms
  • Butler Service
  • Ship-Within-a-Ship Suite Complex
  • Open Seating Dining

Expedition & Marine

  • Tender-Port Capable

Signature Experiences

World's largest cruise ship at launch
largest
The Ultimate Abyss - tallest slide at sea
tallest
First waterslides on a Royal Caribbean ship
fleet first
Largest Casino Royale in the fleet
largest
The Ultimate Abyss - the tallest dry slide at sea
top-deck attraction
The Perfect Storm waterslides - Cyclone, Typhoon and Supercell
top-deck attraction
Two FlowRider surf simulators
top-deck attraction
Zip Line spanning the Boardwalk, nine decks up
top-deck attraction
Rock climbing walls
top-deck attraction
Splashaway Bay children's aqua park
top-deck attraction
Harmony Dunes mini-golf
top-deck attraction

Ship-Specific Highlights

  • The Perfect Storm - a trio of racing waterslides (Cyclone, Typhoon and Supercell), the first waterslides on a Royal Caribbean ship
  • The Ultimate Abyss - the tallest dry slide at sea, plunging ten stories from the pool deck
  • Central Park - an open-air neighborhood with thousands of live plants and al fresco dining
  • Boardwalk - a seaside-themed neighborhood anchored by a hand-carved carousel and the AquaTheater
  • FlowRider - dual surf simulators for bodyboarding and stand-up surfing
  • Splashaway Bay - a colorful aqua park for younger cruisers with pools, slides and water cannons

Venues

Complimentary Dining
  • Main Dining Room
    main_dining_room
    Location: Decks 3-5
    Three-level complimentary main dining room
  • Windjammer Marketplace
    buffet
    Location: Deck 16
    Complimentary self-service buffet
  • Solarium Bistro
    restaurant
    Location: Deck 15
    Complimentary Mediterranean restaurant by the adults-only Solarium
  • El Loco Fresh
    quick_service
    Location: Deck 15
    Complimentary Mexican counter
  • Sorrento's Pizza
    quick_service
    Location: Deck 5 Royal Promenade
    Complimentary pizzeria
  • Park Café
    quick_service
    Location: Deck 8 Central Park
    $ extras
    Complimentary deli and salad counter
  • Café Promenade
    cafe
    Location: Deck 5 Royal Promenade
    $ extras
    Complimentary 24-hour coffee, sandwiches and pastries
  • Boardwalk Doughnuts
    cafe
    Location: Deck 6 Boardwalk
    $ extras
    Complimentary doughnuts and coffee
  • Boardwalk Dog House
    quick_service
    Location: Deck 6 Boardwalk
    Complimentary hot-dog and sausage counter
Specialty Dining
  • Chops Grille
    restaurant
    Location: Deck 8 Central Park
    Surcharge steakhouse
  • 150 Central Park
    restaurant
    Location: Deck 8 Central Park
    Surcharge seasonal fine-dining restaurant
  • Giovanni's Italian Kitchen & Wine Bar
    restaurant
    Location: Deck 8 Central Park
    Surcharge Italian trattoria and wine bar
  • Izumi Hibachi & Sushi
    restaurant
    Location: Deck 4
    Surcharge Japanese hibachi and sushi restaurant
  • Samba Grill
    restaurant
    Location: Deck 15
    Surcharge Brazilian churrascaria
  • Chef's Table
    restaurant
    Location: Deck 8
    Surcharge private multi-course dining experience
Exclusive Dining
  • Coastal Kitchen
    restaurant
    Location: Deck 17
    Suite-guest restaurant with an a-la-carte menu
À la Carte Dining
  • Johnny Rockets
    restaurant
    Location: Deck 6 Boardwalk
    Surcharge 1950s-style American diner
  • Starbucks
    cafe
    Location: Deck 5 Royal Promenade
    Surcharge specialty coffee
Bars & Nightlife
  • Jazz on 4
    lounge
    Location: Deck 4
    Jazz club with craft cocktails
  • Casino Royale Bar
    bar
    Location: Deck 4
    Bar serving the casino
  • Pesky Parrot
    bar
    Location: Deck 5 Royal Promenade
    Tropical tiki bar
  • Rising Tide Bar
    bar
    Location: Decks 5-8
    Moving bar between the Royal Promenade and Central Park
  • Boot & Bonnet Pub
    bar
    Location: Deck 5 Royal Promenade
    English-style pub
  • Boleros
    bar
    Location: Deck 5 Royal Promenade
    Latin-themed bar
  • On Air Club
    lounge
    Location: Deck 5
    Sports and karaoke club
  • Playmakers Sports Bar & Arcade
    bar
    Location: Deck 6 Boardwalk
    Sports bar and arcade with pub food
  • Schooner Bar
    bar
    Location: Deck 6
    Nautical-themed piano bar
  • Trellis Bar
    bar
    Location: Deck 8 Central Park
    Outdoor garden cocktail bar
  • Vintages
    bar
    Location: Deck 8 Central Park
    Wine and tapas bar
  • Dazzles
    nightclub
    Location: Deck 8
    Two-story nightclub and live-music lounge
  • Solarium Bar
    bar
    Location: Deck 15
    Adults-only Solarium bar
  • Wipe Out Bar
    bar
    Location: Deck 15
    Aft sports-deck bar by the FlowRider
  • Crown Lounge
    lounge
    Location: Deck 4
    Loyalty lounge for Diamond members and above
  • Suite Lounge
    lounge
    Location: Deck 17
    Suite-guest observation lounge with its own bar
  • Coastal Kitchen Bar
    bar
    Location: Deck 17
    Bar inside the suite-guest restaurant
  • Suite Sun Deck Bar
    bar
    Location: Deck 17
    Outdoor bar at the suite sun deck
  • The Lime and Coconut
    bar
    Location: Deck 15
    Caribbean pool-deck bar; one of two counters on the main pool deck (port side).
  • The Lime and Coconut
    bar
    Location: Deck 15
    Caribbean pool-deck bar; one of two counters on the main pool deck (port side).
  • Sand Bar
    bar
    Location: Deck 15
    Legacy main-pool bar on the starboard side, retained after the 2026 refresh.
Pools & Aquatics
  • Beach Pool
    pool
    Location: Deck 15
    Pool-deck swimming pool
  • Main Pool
    pool
    Location: Deck 15
    Main pool-deck swimming pool
  • Sports Pool
    pool
    Location: Deck 15
    Sports-themed swimming pool
  • Whirlpools
    whirlpool
    Location: Deck 15
    Eleven guest whirlpools (Solarium, cantilevered, main-deck and Splashaway Bay)
  • The Perfect Storm
    waterpark
    Location: Decks 15-18
    Aqua park with three racing waterslides (Cyclone, Typhoon, Supercell)
  • Splashaway Bay
    splash_zone
    Location: Deck 15
    Children's water-play splash zone
Active Recreation
  • FlowRider
    flowrider
    Location: Deck 16
    Two FlowRider surf simulators
  • Zip Line
    zip_line
    Location: Deck 16
    Spans the Boardwalk, nine decks up
  • Rock Climbing Walls
    rock_wall
    Location: Deck 7
    Two walls
  • Harmony Dunes
    mini_golf
    Location: Deck 15
    Miniature golf course
  • Sports Court
    multi_sport
    Location: Deck 15
  • Laser Tag
    laser_tag
    Location: Studio B, Deck 4
    Battle for Planet Z laser tag added in the Amplified refit
Thrill & Marquee Attractions
  • The Ultimate Abyss
    dry_slide
    Location: Deck 16
    Tallest dry slide at sea, ten stories
Entertainment Venues
  • Royal Theater
    production_theater
    Location: Deck 5
    18,437 SQ FT
    Hosts the production show Grease
  • AquaTheater
    aqua_theater
    Location: Decks 5-6, Aft
    Outdoor amphitheater with high-diving shows
  • Studio B
    ice_show
    Location: Deck 4
    11,411 SQ FT
    Ice-skating rink and show venue
Casino
  • Casino Royale
    casino
    Location: Deck 4
    Largest Casino Royale in the fleet after the Amplified refit; 37 table games and 500+ slots
Spa & Fitness
  • Vitality at Sea Spa
    spa
    Location: Deck 5
  • Vitality at Sea Fitness Center
    gym
    Location: Deck 6
Youth & Teen
  • Adventure Ocean
    kids_club
    Location: Deck 14
    Youth program with nursery, Kids Avenue and teen spaces
  • Fuel Teen Disco
    teen_disco
    Location: Deck 15
Leisure & Public Spaces
  • Solarium
    retreat
    Location: Deck 15
    Adults-only indoor/outdoor retreat with whirlpools and a sun deck
  • Royal Promenade
    interior_promenade
    Location: Deck 5
    Central interior boulevard with shops and bars
  • Central Park
    open_air_park
    Location: Deck 8
    Open-air park with over 20,000 plants
  • Boardwalk
    boardwalk
    Location: Deck 6
    Seaside-themed neighborhood with the Carousel

Culinary Intel & dining strategy on the ship overview →

Data Provenance

Last Verified: 2026-06-12