Ganges Bank
Seychelles
Ganges Bank is a wholly submerged atoll structure in the Southwest of the Chagos Archipelago. It is about 7 by 5 km in size, yielding an area of about 30 km2. The closest land is the Egmont Atoll located 87 km (54 mi) to the NNE.
Data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).