The most famous dive site in the Marine Sanctuary of Cobrador is Sunken Island (Takot Reef). The appearance of this spots reminds you of a sunken island covered with corals. Here one encounters a variety of reef fish, nudibranchs and crustaceans as well as large groupers, cuttlefish, stingrays and various fish swarm in large numbers. With a little luck you can see sharks, eagle rays, turtles and sometimes manta rays.