Boigu Island (also known as Malu Kiyay or Malu Kiwai) is the most northerly inhabited island of Queensland and of Australia. It is part of the Top Western group of the Torres Strait Islands, which lie in the Torres Strait separating Cape York Peninsula from the island of New Guinea. The mainland of Papua New Guinea is only away from Boigu. Boigu has an area of . Boigu Island is the name of the locality on the island within the Torres Strait Island Region. Boigu is predominantly inhabited by indigenous Torres Strait Islanders. In the , the population of the island was 199, of whom 189 people or 95% of the population identified as Indigenous Australians. It is the largest and only inhabited island of the Talbot Islands group (). Language and affiliations The language of Boigu is that of the Western and Central Islands of the Torres Strait. The specific dialect is Kalau Kawau Ya, also spoken on the islands of Dauan and Saibai. The people of the three islands consider themselves as one people. Kala Kawaw Ya (also known as Kalaw Kawaw, KKY) is one of the languages of the Torres Strait. Kala Kawaw Ya is the traditional language owned by the Top Western islands of the Torres Strait Island Region. Geography Boigu Island is approximately long, and low-lying. It was formed by the accumulation of alluvial sediments deposited by the discharge of nearby New Guinean rivers into the Strait. These sediments built up over time on an old coral platform which rises from the shallow continental shelf, eventually creating the island. The Island is separated from the mainland of Papua New Guinea (near the border of Kiwai Rural LLG and Morehead Rural LLG) by a stretch of water measuring at its narrowest point. The island is also the closest Australian territory to the Republic of Indonesia, just east-southeast of the southern tip of the Indonesia–Papua New Guinea border within the Merauke Regency of Western New Guinea. The village of Boigu at the northern end of the island (). It is the northernmost settlement of Australia, but the northernmost land is the uninhabited Bramble Cay, to the east. Most of the island is subject to extensive periodic flooding, and as a result the community township has been built on the highest ground. There are a number of smaller islands nearby, including: Aubussi Island, also known as Awbuz ()