Atlantic Islands, Antarctic
Saint Helena is one of the three constituent parts of Saint Helena, Ascension and Tristan da Cunha, a remote British overseas territory. Saint Helena is a volcanic and tropical island, located in the South Atlantic Ocean, some 1,874 km (1,165 miles) west of mainland Africa, with Angola and Namibia being the closest nations, geographically. The island is located around 1,950 km (1,210 mi) west of the coast of southwestern South Africa, and 4,000 km (2,500 mi) east of Rio de Janeiro, Brazil.