Located just away from the mainland of East Kalimantan in the district of Berau, the Derawan archipelago comprises 31 islands, most well known among these are the islands of Derawan, Maratua, Sangalaki and Kakaban. Here is Indonesia’s largest nesting site of the rare and endangered giant green turtles and hawksbill turtles, where one can daily watch turtles lay their eggs in the sand or swim to sea with the turtles. The entire marine conservancy region covers a total area of no less than 1.27 million hectares.
Here, you can find 460 different species of corals, ranking this area second only to the Raja Ampat Islands in West Papua. The Nature Conservancy and a team of international experts also found more than 870 species of fish here, ranging from tiny pygmy seahorses to giant manta rays. On some days, groups of up to 50 manta rays have been seen feeding together in Derawan’s waters, says the Conservancy.