	The harbour and surrounding area became an area heavily blighted by industrial waste even long after some of the industries were gone. There was a waste bing known by the locals as 'The Blue Billy' due to the colour of the waste there. During World War II a Royal Observer Corps watchtower was sited here giving a wide overall view of the Firth of Clyde. It is also credited with the first visual sighting of Rudolf Hess's Messerschmitt Bf 110 in 1941.