Smeaton's Tower stood were becoming eroded. Each time a large wave hit, the lighthouse shook from side to side. Smeaton's Tower ceased operation in 1879 with the illumination of Douglass's Tower on an adjacent rock. In 1882 the upper part of Smeaton's Tower was dismantled and rebuilt as a memorial to Smeaton on a new base on Plymouth Hoe, replacing the triangular obelisk that had been built there by Trinity House as a navigation aid in the early 19th century. It was opened to the public by the Mayor of Plymouth on 24 September 1884. The foundation and stub of the old
Dassen Island Lighthouse two white flashes, separated by 10 s, every 30 s. The fog horn blasts for five seconds every fifteen seconds. The lighthouse is manned at all times. The island is closed to the general public, but can be visited by special permit. Dassen Island Lighthouse Dassen Island Lighthouse is a lighthouse on the southern point of Dassen Island, west of Yzerfontein. It is a white circular cast-iron tower that has been in use since 1893. The lighthouse is found on southern point of Dassen Island, off the western coast of South Africa, 55 km north-west of Cape Town and 11