Cozumel, a largely undeveloped Mexican island in the Caribbean Sea, is a popular cruise ship port famous for its diving. In the Arrecifes de Cozumel National Park, there are dive sites around a section of the Mesoamerican Reef and the submerged sculptures of the Museo Subacuático de Arte. Chancanave is an ecological park surrounding a lagoon with underwater caves, home to dolphins, manatees and sea turtles.