is preserve area that went out to sea, part of Sangalaki island, which is located not far from offshore Batu foreland, between Berau and Tarakan. This island has beautiful panorama with clean white coast with adjoining coconut palm forest, and a number of small villages encircle island. This place has known as sea tourism location especially for dive and snorkeling activities. Although situation of outlying, but the popularity of and islands in vicinity increasingly as location sea tourism. The marines around is rich with fish especially a kind of fish that always forage on the surface of water whereas birds fly above it to pounce adrift food on the sea. Green tortoise, which is scarce laid eggs along the Derwan Island beach, is not far from diving Derwan Dive Resort location. You will not meet car or motor in this island while electrics only live a few nocturnal clocks.