The Rukan Islands (Kepulauan Rukan in Indonesian language), also known as the Three Brothers, is a group of three small islands at the south entrance of Durian Strait, in the Riau Islands Province of Indonesia, off the north coast of Sumatra near Singapore.[1][2] The group extends about 7.2 km north to south, and is surrounded by many dangerous wrecks.[3]
South Brother (Rukan Selatan), located at 0°32′20″N103°47′45″E / 0.53889°N 103.79583°E / 0.53889; 103.79583, 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,[2] with a conspicuous white cliff or rock on the north east.[3] The highest point is about 43 m above sea level.[3] Reefs extend some distance south of the island.[1] There is a lighthouse on the island, established 1911.[4]
North Brother (Rukan Utara), also called or Round Brother and located at 0°37′25″N103°45′30″E / 0.623668°N 103.758385°E / 0.623668; 103.758385, is a wooded rock[3] about 500 m east to west and 400 m north to south.[2] Its highest point is about 24 m above sea level.[1][3] 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.[1] There is a lighthouse on the island.[3]
References
^ abcdefJ. W. Reed and J. W. King (1867), The China sea directory, pages 219–220. British Admiralty Hydrographics Office.