The Derawan Islands are in the province of East Kalimantan in Indonesia. They include Derawan, Sangalaki, Kakaban, Maratua, Panjang, and Samama Island and submerged reefs and islets.Located in a biodiversity hotspot, the Derawan Islands feature 872 species of reef fishes, 507 species of coral, and invertebrates, including protected species (5 giants clam species, 2 sea turtles, coconut crab, etc.). Some of the islands harbor the heavily exploited turtle eggs and yet the largest green turtle nesting site in Indonesia.