Egmont Islands (also known as Egmont Atoll,[1] or Six Iles) is an uninhabited atoll administered by the United Kingdom. They are one of the few emerged coral atolls that make up the Chagos Archipelago, British Indian Ocean Territory.
This small atoll lies less than 10km south of the southwestern rim of the Great Chagos Bank submerged coral reef. Its total size is 29km²,[2] including the lagoon and the fringing coral reef. The land area totals about 4km². The nearest island is Danger Island on the Great Chagos Bank, less than 30km due north.
There are two passages into the lagoon along the Northern Rim, Fausse Passe in the northeast and a wider passage in the northwest. The Egmont Islands are one of the favorite anchoring spots for itinerant yachtsmen passing through the Chagos.[3]