Slangkop Lighthouse, Kommetjie, South Africa Image by DanieVDM Operational since 4 March 1919. This is the tallest cast iron tower on the South African Coast, 100 feet from base to its balcony. The lighthouse is equipped with a revolving electric light that emits four flashes very 30 seconds. Not all the flashes are visible with each revolution from any one point. It is … [Read more...] about Slangkop Lighthouse, Kommetjie, South Africa