Fangatau, or Nakai-erua, is a small atoll in the Tuamotu group in French Polynesia. The nearest land is Fakahina Atoll, located 72 km to the ESE. This small atoll has an elongated shape. Its length is 8 kilometres (5.0 miles), maximum width 3.5 kilometres (2.2 miles). It has a total area of 22.2 square kilometres (8.6 square miles). (land area 6 km). Its reef encloses its lagoon completely. Anchorage is difficult. Fangatau Atoll has 145 inhabitants. Teana is the main village.