The world's largest cruise ship, which at 362m is over 50m longer than the Eiffel Tower, has set off on its first sea trial from France.
The 227,000-tonne Harmony of the Seas has a capacity for slightly over 6,000 passengers and 2,000 crew, and is specially catered to a new generation of cruisegoers.
It boasts 18 decks that reach a height of 70m packed with facilities not for the faint-hearted.
These include a ride that flings thrill-seekers down 10 decks, a water park, zip line, rock-climbing walls, two FlowRiders with simulated waves for surfing, an ice-skating rink and a theatre for Broadway- type productions that seats more than 1,000.
The US$1 billion (S$1.4 billion) mammoth is the latest addition to the Royal Caribbean fleet, and is scheduled for delivery in May.