The world’s largest cruise ship has set sail on its maiden voyage from Miami, Florida.

The 1,197 ft Icon of the Seas, owned by Royal Caribbean Group, has 20 decks and can house a maximum of 7,600 passengers.

It also has seven swimming pools and six water slides and more than 40 restaurants, bars and lounges.

The US$2bn vessel is going on a seven-day island-hopping voyage in the Caribbean.

However, it is not only glitz and glamour as, according to BBC News, environmentalists warn the LNG-powered ship could leak harmful methane into the air.