Charitable Island has an area of 15.9 hectares, located in Derawan Islands, the District of Berau, East Kalimantan.
Morphological unit has a flat coastal plain. The island has a shallow lagon based sand and overgrown by corals and seagrasses.
Sand beach has a width of 12-15 meters with gradients of between 6 ° -11 ° to the material making up the coast in the form of fragments of coral and the dominant grain size of coarse sand. In the surrounding waters are a marine park and famous as a tourist diving (diving). There is a wide range of marine life here, which is famous for manta rays.
Manta rays commonly grouped in the waters of the island and can be assembled up to 20 tail light rays during the month. They headed to the island to find food in the form of various types of plankton are abundant in these waters.