Bassas da India atoll
The atoll consists of ten barren rocky islets, with no vegetation, totalling 0.2 km² (.077 sq mi) in area. Those on the north and east sides are 2.1 to 3 m high, while those on the west and south sides are 1.2 m high. The reef, whose coastline measures 35.2 km (22 mi), is completely covered by the sea from three hours before high tide to three hours afterward. The region is also subject to cyclones, making the atoll a long-time maritime hazard and the site of numerous shipwrecks.