The Sydney Harbour Bridge is a steel arch bridge across Sydney Harbour that carries rail, vehicular and pedestrian traffic between the Sydney central business district (CBD) and the North Shore. The dramatic view of the bridge, the harbour, and the nearby Sydney Opera House is an iconic image of both Sydney and Australia. The bridge is locally nicknamed "The Coat Hanger" because of its arch-based design.It is the world's largest (but not the longest) steel arch bridge with the top of the bridge standing 134 metres above the harbour. The bridge was opened in 1932 but BridgeClimb started in 1998 and attracts tourists and locals alike to climb the monument. The view is absolutely breathtaking. There are day, twilight and night climbs and a group of twelve will leave for a climb every ten minutes.