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Harmony of the Seas always provides gravity-defying, status-quo denying, electrifying expedition onboard that will set a new standard for family vacations. From first-at-sea feats to the favorites you know and love, you’ll find so many ways to make memories onboard — like the tallest slide at sea, Ultimate Abyss, deck-defying stunts at the AquaTheater, and the robot-helmed Bionic Bar.

Not to mention dazzling Broadway performances and globetrotting gastronomic experiences that go from Asia to the Mediterranean, and beyond. Harmony of the Seas (2016-built, last refurbished in 2021) is the first of all four identical design (Oasis-Plus class) Royal Caribbean cruise ships – with sisterships Symphony OTS (2018), Wonder OTS (2022) and Utopia OTS (2024). Royal Caribbean Harmony ship is the world’s largest passenger liner, exceeding in size and passenger capacity the Oasis-class sisterships Allure OTS and Oasis OTS.

Harmony of the Seas cruise ship deck plan shows a total of 2745 staterooms for 5497 passengers (max capacity is 6410) served by 2400 crew-staff. The boat has 17 decks (16 passenger-accessible, 12 with cabins), 26 lounges and bars, 24 elevators, 9-deck-high Zip Line, 2 rock-climbing walls, 2 FlowRiders, a total of 19 pools. (including 4 swimming pools, 1 kids pool), 9 outdoor Jacuzzis (whirlpool hot tubs, including 2 cantilevered).

The ship’s first drydock was a month-long project (April 2021) at Navantia Shipyard in Cadiz Spain. The docking was for routine maintenance works (done to cruise ships usually every 5 years) to keep them properly maintained. Harmony OTS’s 2021 drydock included mainly technical works (propellers, fin stabilizers, bottom valves, hull painting) and classification inspection.


Harmony of the Seas

Harmony of the Seas


Name Harmony of the Seas
Owner Royal Caribbean Cruises Ltd.
Operator Royal Caribbean International
Port of registry Nassau Bahamas
Route Caribbean
Ordered 27 December 2012[4][1]
Builder Chantiers de l’Atlantique[4]
Cost US$1.35 billion (2015)[8]
Yard number A34[1]
Laid down 9 May 2014[1]
Launched 19 June 2015 (float-out)[1][2]
Completed 13 May 2016[1]
Acquired 12 May 2016[3]
Maiden voyage 29 May 2016[7]
In service 15 May 2016[6]
Homeport Port CanaveralFlorida[5]
Status In service
General characteristics
Class and type Oasis-class cruise ship
Displacement Approximately 120,000 t (132,000 short tons)[9]
Length 362.12 m (1,188.1 ft)[1]
  • 47.42 m (155.6 ft) waterline[1]
  • 66 m (217 ft) max beam[11]
Draught 9.322 m (30.6 ft)[1]
Depth 22.6 m (74 ft)[14]
Decks 18; 16 passenger decks[10]
Installed power
  • 4 × 14,400 kW (19,300 hp) Wärtsilä 12V46F[1]
  • 2 × 19,200 kW (25,700 hp) Wärtsilä 16V46F[1]
  • 3 × 20 MW (27,000 hp) ABB Azipod,
  •       all azimuthing[1]
  • 4 × 5.5 MW (7,400 hp) Wärtsilä CT3500
  •       bow thrusters[1]
  • >25 knots (46 km/h; 29 mph) maximum[13]
  • 22 knots (41 km/h; 25 mph) cruising[10]
  • 5,479 passengers at double occupancy[12]
  • 6,780 maximum[12]
Crew 2,300[10]

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