Surin Islands is located in the Andaman Sea in Phang Nga Province, Thailand. It consists of five islands, including Bisurin Island and South Surin Island, with an area of about 33 square kilometers. It is a national park of Thailand. There are tropical rainforests, beaches, mangroves, and coral reefs on the island. There are giant clams and hermit crabs on the beach, and there are animals such as Nicobar pigeons and mangrove monitors. Tourism is the main industry.