The world39s largest cruise ship is preparing for service The

The world's largest cruise ship is preparing for service: The 1,198-foot-long Icon Of The Seas, with 20 decks, a 55-foot waterfall and rooms for 7,600 guests, arrives in Puerto Rico during sea trials

The world's largest cruise ship has made its way to Puerto Rico and is preparing to take on its first paying passengers.

Locals and tourists in Ponce, Puerto Rico got their first look at the 1,198-foot-long, 250,800-ton pleasure cruiser named “Icon Of The Seas” as it took a necessary break in port as part of its sea trial to obtain its certification.

The 20-deck ship, five times larger than the ill-fated Titanic, loomed over the city on the Caribbean island's southern coast.

The massive ship, which cost cruise line Royal Caribbean $2 billion (£1.58 billion), features a dining room, six swimming pools and the largest at-sea water park of any cruise ship in the world.

The first paying customer cruise departs Miami, Florida on January 27 for a seven-day Caribbean cruise, including a stop at Perfect Day at CocoCay, Royal Caribbean's private island in the Bahamas.

The 20-deck monster, five times larger than the ill-fated Titanic, loomed over Puerto Rico

The 20-deck monster, five times larger than the ill-fated Titanic, loomed over Puerto Rico

Locals and tourists in Ponce, Puerto Rico got their first look at the 1,198-foot-long, 250,800-ton pleasure cruiser named Icon of The Seas (pictured).

Locals and tourists in Ponce, Puerto Rico got their first look at the 1,198-foot-long, 250,800-ton pleasure cruiser named Icon of The Seas (pictured).

The first cruise for paying customers departs Miami, Florida on January 27th for a seven-day voyage through the Caribbean

The first cruise for paying customers departs Miami, Florida on January 27th for a seven-day voyage through the Caribbean

This year's schedule of a seven-day Caribbean cruise has prince fares starting at around £1,200, but so far almost all of the

This year's schedule of a seven-day Caribbean cruise has prince fares starting at around £1,200, but so far almost all of the “staterooms” have been reserved and paid for

The rooms yet to be allocated cost between £4,000 and £6,000

The rooms yet to be allocated cost between £4,000 and £6,000

The cruise took years to put together, with full-scale prototypes of

The cruise took years to put together, with full-scale prototypes of “neighborhoods” – as the ship's eight main areas are called – built in Miami

The most daring lift came when the Aquadome - the largest free-standing dome at sea with nearly 700 glass panels and weighing 365 tons - was lifted from the dock and plopped onto the ship like a flying saucer

The most daring lift came when the Aquadome – the largest free-standing dome at sea with nearly 700 glass panels and weighing 365 tons – was lifted from the dock and plopped onto the ship like a flying saucer

The ship is the size of five Titanics and the length of three football fields

The ship is the size of five Titanics and the length of three football fields

The water park on the ship is the largest at sea

The water park on the ship is the largest at sea

This year's schedule of a seven-day Caribbean cruise has prince fares starting at around £1,200, but so far almost all of the

This year's schedule of a seven-day Caribbean cruise has prince fares starting at around £1,200, but so far almost all of the “staterooms” have been reserved and paid for

Rooms yet to be allocated will cost families between £4,000 and £6,000

Rooms yet to be allocated will cost families between £4,000 and £6,000

The cruise took years to put together, with full-scale prototypes of

The cruise took years to put together, with full-scale prototypes of “neighborhoods” – as the ship's eight main areas are called – built in Miami

Jay Schneider, Royal Caribbean's chief product innovation officer, previously told the Mail:

Jay Schneider, Royal Caribbean's chief product innovation officer, previously told the Mail: “We didn't set out to build the largest ship in the world.”

The maiden voyage of the “Icon of the Sea” is scheduled to take place at the end of January

The maiden voyage of the “Icon of the Sea” is scheduled to take place at the end of January

The ship cost Royal Caribbean $2 billion (£1.58 billion) to produce.

The ship cost Royal Caribbean $2 billion (£1.58 billion) to produce.

Prices for this year's seven-night Caribbean cruise start at around £1,200, but so far almost all 'cabins' have been reserved and paid for, with those yet to be snapped up costing between £4,000 and £6,000.

Some rooms are even more expensive. The Ultimate Family Townhouse Suite spans three decks. While customers can take the stairs to traverse the massive suite, when descending they also have the option of using a slide that leads to the living room floor.

The Ultimate Family Townhouse sleeps eight people and has its own sun terrace and various balconies. Seven nights cost families a staggering $85,000 (£70,000).

The cruise took years to put together. Prototypes of “neighborhoods” – as the ship’s eight main areas are called – were built to scale in Miami before being installed on the actual ship at the Meyer Turku shipyard on Finland’s Baltic coast.

Most of the “cabins” are modular buildings that were built elsewhere in Finland and then moved into place.

The most daring lift occurred when the Aquadome – the largest free-standing dome at sea with nearly 700 glass panels and weighing 365 tons – was lifted from the dock and plopped onto the ship like a flying saucer, its weight evenly distributed using numbers Computers connected to each cable.

This particular maneuver took 24 hours and the dome now features a 55-foot waterfall and seating for 1,300 people.

Jay Schneider, Royal Caribbean's chief product innovation officer, previously told the Mail: “We didn't set out to build the largest ship in the world.”