Bunguran Island or just Bunguran is the main island of the Middle Natuna Archipelago, which is part of the Riau Islands Province in Indonesia. It is also called Great Natuna Island. The area of Bunguran is 1,633 km² with a coastline of 359 km. The highest point is Mount Ranai at 1,035 metres. The island had a population of 58,820 inhabitants according to the off…Bunguran Island or just Bunguran is the main island of the Middle Natuna Archipelago, which is part of the Riau Islands Province in Indonesia. It is also called Great Natuna Island. The area of Bunguran is 1,633 km² with a coastline of 359 km. The highest point is Mount Ranai at 1,035 metres. The island had a population of 58,820 inhabitants according to the official estimate for mid 2023. The principal settlement is Ranai. The island can be reached by scheduled air services via Ranai Airport.