Natuna Islands archipelago (272 islands) is located in the Natuna Sea. The islands are officially part of the Riau Islands province of Indonesia and it is the northernmost non-disputed island groups of Indonesia. Main islands include archipelagoes of Natuna Besar, South Natuna archipelago and Tambelan archipelago, the last consisting of Badas Islands. The South Natuna group comprises the islands of Serasan, Panjang and Subi. The Anambas archipelago, located several hundred kilometers to the west and comprising Terempa, Matak and Jemaja Andriabu island, are also sometimes included in the Natuna Islands.
Natuna Besar is the main island of the Natuna Besar Archipelago, as well as the Natuna Islands, which are part of the Riau Islands Province, Indonesia. The Natuna archipelago is one of the northernmost island groups of Indonesia. The area of Natuna Besar is 1720 km². The island of Bunguran is home to three species of non-human primate: the slow loris (Nycticebus coucang), the long-tailed macaque (Macaca fascicularis), and the Natuna leaf monkey Other islands of the Natunas are South Natuna archipelago and Tambelan archipelago.
