 One afternoon, after landing on what they thought was large and better-known Great Camanoe, White walked off in one direction along the beach and Rodie in the other.Meeting less than half an hour later, they realized they had landed on a tiny island, Marina Cay, which they quickly purchased for $60.The Whites spent three years on Marina, hacking a cistern out of the rough, rocky land and shipping in enough concrete to build a small, sturdy house.