Name: Harmony of the Seas​Namesake: Peaceful coexistence and musical unity​Owner: Royal Caribbean Group​Operator: Royal Caribbean International​Port of Registry: Nassau​Country: Bahamas​Builder: Chantiers de l'Atlantique, Saint-Nazaire​Class and Type: Oasis-class cruise ship​

Brief DescriptionHarmony of the Seas is one of the world's largest cruise ships, measuring 1,188 feet long with a gross tonnage of 226,963 tons and capacity for over 6,700 passengers plus 2,300 crew. It features 18 decks packed with amenities like 22 restaurants, a 10-story slide, ice skating rink, zip line, and Central Park—a real outdoor garden with 20,000 plants. Designed as a floating city, it emphasizes entertainment, dining, and adventure for Caribbean voyages.​

Construction HistoryKeel laying began in 2013 at Chantiers de l'Atlantique in France, with launch in June 2015 and delivery to Royal Caribbean in May 2016 after extensive sea trials. As the third Oasis-class ship, it incorporated innovations from predecessors Oasis and Allure of the Seas, costing around $1.35 billion. Christened in Southampton before homeporting in various locations for year-round itineraries.​

Operations and LegacyHarmony debuted Western Mediterranean cruises in 2016, later shifting to Fort Lauderdale for Caribbean routes with 7-night Eastern and Western itineraries. It held records for passenger capacity and onboard features until slightly larger sisters debuted, earning praise for family-friendly innovations. Regular refurbishments keep it modern, solidifying its status in Royal Caribbean's fleet.​