The Royal Yacht

The royal yacht is a fancy two-hundred-foot yacht docked at Belle Harbor.

Description
Among its features the yacht has a Jacuzzi, a helicopter pad on the top deck. This is described as being "the crowning glory of the royal collection" of boats. The boat is first mentioned when Mal, Jay, Evie and Carlos break into the Marina and are at Belle Harbor. It is the boat Jay suggested they use (most likely because of the luxury). That idea is immediately shot down by Mal who explains that it is only used for special occasions telling Jay "Ben would kill us."