A third of the Royal Caribbean Cruises Ltd. (RCCL) fleet is in the UK tonnage tax system as the group does not think that one size does not fit all in even ship management, said Richard Fain chairman and ceo of the world's second largest cruise shipping group.

"We have found that one size does not fit all in almost anything. We want to take advantage by having different kinds of strategies," he said at a press conference on board Anthem of the Seas. The vessels in question and technically and commercially managed from the UK, which is a requirement of the system. However, they do not fly the British flag as this is not required by the legislation about the system.