Lake Cumberland in southern Kentucky is known as “the houseboat capital of the world.” Tourists from all over enjoy houseboat rentals on Lake Cumberland. Renting a houseboat makes it easier to have fun with water sports. The lake is home to four marinas, Indian Hills, Jamestown, Wolf Creek and State Dock. State Dock marina has the largest fleet of rental houseboats in the U.S. One can dive off the houseboat and go swimming in Lake Cumberland.