Zumba is partnering with Royal Caribbean for the world's first-ever official Zumba cruise, happening next January. That's five full days of dancing on a boat with no chance of escape, as the New York Observer notes. The cruise starts at $644 and will transport 130 Zumba instructors and 4,400 fans to a magical place called Zumba Island. That's also known as Labadee, Haiti or Royal Caribbean's private beach destination, and it looks like it has all the cruise vacation essentials in addition to being headquarters for Zumba Party Central. No wonder Zumba CEO and cofounder Alberto Perlman said in a press release that this is "the happiest cruise to ever set sail."