According to Royal Caribbean, the ship will be able to cruise at 22 knots — about 25 mph.
Harmony is also equipped with four, 7,500-hp bow thrusters to help her dock.
The ship features 18 decks and can hold up 6,780 guests in 2,747 staterooms.
Harmony of the Seas is crewed by 2,100 people from around the world.
The ship is divided into seven "neighborhoods," each with a distinctive theme.
Here's a view of the ship's promenade.
Like the other Oasis-class ships, Harmony of the Seas has an amphitheater located at its stern.
The casino will be a major on-ship attraction and a solid revenue driver for the cruise line.
Slot machine time!
Here's Royal Caribbean's robotic bionic bar. There are also 20 different dining options available.
Here's the Royal Theatre located near the bow of the ship.
Harmony has a total of three water slides, one of which is 10 stories tall. There are also four pools and 10 whirlpools — two of which are cantilevered, overlooking the ocean.
Other recreational activities include two surf simulators, two 43-ft.-high rock walls, an ice skating rink and a full-size basketball court.
Harmony of the Seas has 24 guest elevators. That's right, 24.
Royal Caribbean president and CEO Michael Bayley expects a fourth Oasis-class ship to the join the fleet in early 2018.