Harmony Of The Seas: Size And Specs
From length and tonnage to guest capacity, here’s what makes this ship standout
By Cassie Bailey | Published on August 8, 2025
Royal Caribbean’s ship Harmony of the Seas may be among the world’s largest cruise ships—what with its 18 decks and all—but the vacation experience it offers goes far beyond her size. After all, what does being big really mean? It’s not just about collecting records for being the world’s largest. This Oasis Class ship has seven signature neighborhoods that offer a range of experiences and adventures unmatched at sea: more slides than ever before (particularly The Ultimate Abyss, a 10-story slide that’s the tallest at sea), more dining options, more cocktails and more entertainment.
Here’s a look at some surprising stats you may not know about this award-winning ship:
1. How Big Is Harmony Of The Seas?
2. It Takes A Village
3. Say What?!?
4. Fresh Feasts
If you thought hosting a dinner party was hard work, try feeding nearly 7,000 people. On a typical seven-night cruise, Harmony can use around 350 tons of ice cubes (approximately 110,000 pounds are made each day), 5,000 dozen fresh whole eggs, 100 gallons of chocolate ice cream, 2,100 lbs. of lobster tail and 2,500 lbs. of fresh salmon. Good thing the food and beverage team, with 1,056 members, accounts for almost half of the entire crew.
Check out upcoming sailings on Harmony of the Seas and start planning your vacation.
