16.5004°S, 151.7415°W.
Bora Bora is a coral atoll-and-island in the Leeward group of the Society Islands, French Polynesia, lying about 230 kilometres northwest of Tahiti in the central South Pacific. The central island is the eroded remnant of an extinct shield volcano whose two surviving peaks, Mount Otemanu (727 metres) and Mount Pahia (661 metres), are basaltic plugs that rise sheer from the lagoon. A nearly continuous barrier reef encloses a turquoise lagoon roughly 80 square kilometres in area, broken by a single navigable pass at Teavanui on the western side. The island's first European contact was the visit of James Cook in 1769; the United States built an undeclared resupply base here during the Second World War, leaving behind several still-visible coastal defence guns. The population today is around 10,000 and the economy is overwhelmingly tourist.
Bora Bora is sinking on geological timescales — the atoll ring is what will remain.