The Torres Islands are in the Torba Province of Vanuatu, the northernmost island group in the country. The chain of islands that make up this micro-archipelago straddle the broader cultural boundary that distinguishes Island Melanesia from several Polynesian outliers located in the neighbouring Solomon Islands. To the north is Temotu Province of the Solomon Islands, to the south Espiritu Santo, and to the southeast the Banks Islands. To the west, in the ocean, is the deep Torres Trench, the subduction zone between the Australian and Pacific Plates. The seven islands in the Torres group, from north to south, are Hiw or Hiu (the largest), Metoma, Tegua, Ngwel (an uninhabited islet), Linua, Lo or Loh, and Toga. This chain stretches 42 km (26 mi). The highest point of the chain is only 200 m (656 ft) above sea level. They are less rugged than the country's islands further south. Contrary to popular belief, only a few stretches of the Torres Islands' coastline are graced with white sand beaches; in reality, much of the shore is composed of rocky coral uplift. As of mid-2004, the Torres Islands sustained a total population of approximately 950 people, dispersed across at least ten settlements of various sizes, all of which are located on or near coastal areas. The names of these settlements are: Yögevigemëne (or Yögemëne for short), Tinemēvönyö, Yawe and Yakwane (on Hiw), Lotew (on Tegua; sometimes misspelled Lateu), Lungharegi, Telakwlakw and Rinuhe (on Lo), and Likwal and Litew (on Toga). A small airstrip on Linua opened in 1983 and provides the only regular transportation link with the rest of Vanuatu. Lungharegi is considered the administrative centre for the Torres Islands, but this role is very small. It has a community phone and medical clinic, but no bank or police station and only two barely stocked stores.