Pulau Ayu and Pulau Kanobe are two other small inhabited islands south-west and south of Pulau Reni.
Pulau Reni lies 27 km (17 mi) north-east of Pulau Ayu and 11 km (6.8 mi) north of Pulau Kanobe.
Access to the island is limited to small boats due to the reefs and the small size of the island.
World War II
Pulau Reni and all the islands in the Ayu Archipelago were occupied by the Japanese Empire during World War II from 1942 until the end of the war in 1945.