Bora Bora is a French island group in the Leeward Islands, comprising the western part of the Society Islands of French Polynesia, an overseas collectivity of the French Republic in the South Pacific. Bora Bora has a total land area of 30.55 km2 (12 sq mi). The main island, located about 230 kilometres northwest of Papeete, is surrounded by a lagoon and a barrier reef. In the center of the island are the remnants of an extinct volcano, rising to two peaks, Mount Pahia and Mount Otemanu; the highest point is at 727 m (2,385 ft).