The 50-foot catamaran, the Serenity, was about 265 miles off the coast of Bermuda, when its escape hatch blew a gasket, causing the vessel to take on water.
The cruise ship, which was sailing from Eemshaven in the Netherlands to its new home in Port Canaveral, Florida, responded to the call and sent out one of its small boats.
A cruise ship rescued four people from a disabled catamaran that was taking on water hundreds of miles off the coast of Bermuda on Sunday, officials said.