Introduction
One Fathom Bank Lighthouse is an offshore lighthouse in the Straits of Malacca and off the coast of the state of Selangor. It is also called Rumah Api One Fathom Bank or Rumah Api Permatang Sedepa
Initially, One Fathom Bank was served by a lightship stationed in 1852. Later in 1874, a permanent screw-pile lighthouse was built. The lighthouse has since been replaced twice; in 1907 with a concrete pile lighthouse, and in 1999 when a larger modern counterpart was built parallel to the 1907 lighthouse, superseding its predecessor’s duties. The lighthouses have since been referred to as the “old” One Fathom Bank Lighthouse and the “new” One Fathom Bank Lighthouse.
Due to being well out to sea, both lighthouses are only accessible by boat. While both sites of the lighthouses are open, their towers remain off-limits.