The Natuna Regency is an archipelago of 272 islands located in the south part of the South China Sea in the Natuna Sea. It is part of the larger Tudjuh Archipelago, off the northwest coast of Borneo. Administratively, the islands (including the central Bunguran Islands and various outliers) constitute a regency within the Riau Islands Province of Indonesia and are the northernmost non-disputed island group of Indonesia.