Location of Cauvin Bank in the Indian Ocean
Cauvin Bank is a wholly submerged atoll structure in the Southern Part Chagos Archipelago at 6°49′S 72°22′E / 6.817°S 72.367°ECoordinates: 6°49′S 72°22′E / 6.817°S 72.367°E, just about 7 km South of the Southeastern corner of the rim of the Great Chagos Bank. It is roughly circular in shape, with a diameter of 4 km, and an area of about 12 km². There are least depths between 9 and 11 m in the Northern part of the reef. The closest land is the northernmost part of Diego Garcia atoll, Middle Island, 41 km to the South.