Rukan Islands

• South Brother, located at, is L-shaped, about 1.7 km north to south and 1.6 km east to west, and about 400 m wide for most of its length, with a conspicuous white cliff or rock on the north east. The highest point is about 43 m above sea level. Reefs extend some distance south of the island. There is a lighthouse on the island, established 1911.
• Middle Brother, located at, lies almost due north of South Brother; the two islands are about 1.3 km apart. It is about 1 km long east to west, and about 200 m wide. Its highest point is about 47 m above sea level.
• North Brother, also called or Round Brother and located at, is a wooded rock about 500 m east to west and 400 m north to south. Its highest point is about 24 m above sea level. It lies about 5 north and 1 km west of Middle Brother, and about 4 km east of Sanglar Island. A tail of reefs extends about 1.5 km from the island towards Middle Brother. There is a lighthouse on the island.