Marokau and Ravahere form a minor subgroup of the Tuamotus known as the Two Groups Islands.
Ravahere Atoll is roughly boomerang-shaped. It measures 20km in length with a maximum width of 9.5km. The shallow lagoon has a surface area of 57.5km², but there is no pass to enter it.
Ravahere is permanently uninhabited.
History
The first recorded European who sighted the two neighboring atolls of Marokau and Ravahere was Louis Antoine de Bougainville in 1768.