What will it be like on the largest cruise ship ever, Harmony of the Seas? Take a first look at the 227,000-ton soon-to-debut Royal Caribbean ship as it nears completion. 

A sister to the giant Allure of the Seas and Oasis of the Seas (the current size leaders in cruise world), Harmony will be heavier than its siblings by over 1,700 tons, more than three meters wider, and able to accommodate 100 more passengers. The total capacity of the newest Royal Caribbean ship be well over 6,000 guests.

Much of Harmony is still a construction zone. Several major areas, including cabin decks, are near to completion. The ship is scheduled to debut in May in Southampton, UK.

Harmony of the Seas features a multi-deck water slide area that is a first for Royal Caribbean. It is also the first Oasis class ship with robot bartenders serving drinks in the Bionic Bar, a concept that debuted in 2014 on Quantum of the Seas. Harmony has bigger cabins than Allure and Oasis in some categories, and windowless interior cabins outfitted with Virtual Balconies, offering a real-time view of the outdoors (first debuted in 2014 on Navigator of the Seas).

Harmony's Suite passengers will benefit from exclusive new areas including a suite lounge, private restaurant called Coastal Kitchen and full-service Suite Sun Zone. New restaurants include the Wonderland Imaginative Cuisine eatery which first debuted on Quantum. Also added to Harmony is the modern Mexican restaurant Sabor, recently added to Allure and Freedom of the Seas.

Images: experience.usatoday.com

Harmony's first cruise with paying travelers is scheduled for May 22. Following an initial series of Mediterranean sailings, the ship will reposition to Fort Lauderdale, to offer 7-night Eastern and Western Caribbean voyages.

For latest deck plans and a most detailed ship review visit CruiseShipDeckPlan.com