- Launched
- May 2016
- Gross tonnage
- 226,963 GT
- Passengers
- 5,479 (double), 6,687 (max)
- Crew
- 2,200
- Length
- 362 m
- Home port
- Fort Lauderdale / Barcelona (seasonal)
Harmony of the Seas entered service in May 2016 as the third Oasis-class ship. She is Fort Lauderdale-based for winter Caribbean sailings and Barcelona-based for summer Western Mediterranean itineraries.
Harmony introduced the Ultimate Abyss dry slide and The Perfect Storm waterpark (Cyclone, Typhoon, and Supercell slides) — features later rolled out to Symphony, Wonder, and Utopia. She was briefly the world's largest cruise ship at launch.
Her mixed Caribbean-Mediterranean deployment gives European guests one of the shortest routes onto an Oasis-class ship without transatlantic flights.
Highlights
Perfect Storm waterpark
Three-slide complex introduced to the Oasis class on Harmony.
Ultimate Abyss
First Oasis-class ship to carry the 10-deck dry slide.
Mediterranean summer
Barcelona-based summer season for direct European access.
Same class
Sister ships
Launched 2024
Utopia of the Seas
The sixth Oasis-class ship — LNG-powered and the first Oasis-class vessel built for short-cruise duty from Port Canaveral.
Launched 2022
Wonder of the Seas
The fifth Oasis-class ship — briefly the largest afloat, now a Caribbean and Mediterranean workhorse.
Launched 2018
Symphony of the Seas
The fourth Oasis-class ship — Miami-based year-round, Ultimate Family Suite and Ultimate Abyss.
Launched 2010
Allure of the Seas
The second Oasis-class ship — Galveston-based, Texas-market Caribbean workhorse.
Launched 2009
Oasis of the Seas
The original Oasis-class ship — the vessel that redefined modern mega-ship cruising, now New York-based.
Also in Royal Caribbean International
Other ships in the fleet
Launched 2024
Icon of the Seas
The largest cruise ship ever built — Royal's Icon-class flagship, LNG-powered, eight-neighbourhood layout.
Launched 2025
Star of the Seas
The second Icon-class ship — Port Canaveral-based, seven-night Caribbean, sister to Icon of the Seas.
Launched 2021
Odyssey of the Seas
The fifth Quantum-class ship — Quantum Ultra spec, Fort Lauderdale winter and Mediterranean summer.
Launched 2019
Spectrum of the Seas
The fourth Quantum-class ship — the first Quantum Ultra, purpose-built for the Chinese market from Shanghai.
Launched 2016
Ovation of the Seas
The third Quantum-class ship — Australia's largest and newest cruise ship, splitting Brisbane summers with Alaska.
Launched 2015
Anthem of the Seas
The second Quantum-class ship — the New York area workhorse and Royal's most consistent Bermuda operator.
Launched 2014
Quantum of the Seas
The original Quantum-class ship — Singapore-based, Southeast Asia flagship and the smart-ship platform originator.
Available on this ship
Onboard experiences
Royal Suite Class
Royal Caribbean's suite-class enclave — Coastal Kitchen, Suite Lounge, and dedicated Royal Genie service across the fleet.
Perfect Day at CocoCay
Royal Caribbean's private Bahamian island — Thrill Waterpark, Coco Beach Club, and the most heavily invested private destination in cruising.
Cruise line
Explore the brand
Royal Caribbean International
The world's largest cruise line — home to the biggest ships afloat and the most complete family-oriented product in mainstream cruising.
Royal Caribbean Group (parent group)
Royal Caribbean Group is the world's second-largest cruise operator, parent of Royal Caribbean International, Celebrity Cruises, and Silversea — three brands spanning contemporary, premium, and ultra-luxury.