Cayo Aurora or Gilligan’s Island is one of three cays of Caña Gorda Cays. As such, Cayo Aurora isn’t inhabited and is reachable only via boat. Because of its relatively isolated position, Gilligan’s Island is rich with various tropical fish, corals and various underwater plants. Knowing this, it is no surprise that snorkeling is popular here. You don’t need to worry about bringing your own gear, because it is available for rent on the main island.