Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Semaphore South is a beachside suburb of Adelaide, in the City of Port Adelaide Enfield. Semaphore South Post Office opened on 3 November 1947 and closed in 1978. The City of Port Adelaide Enfield was established on 1 January 1997 by the amalgamation of the City of Port Adelaide and the City of Enfield, and is one of the larger metropolitan councils within South Australia. Extending from the River Torrens to Outer Harbor, and covering an area of approximately 97 km², the City offers some of the South Australia's finest historical buildings and landmarks, together with a wealth of beautiful parks and excellent cultural and recreational facilities.