But by 1963 Penarth Dock closed for a second time .
During the Second World War the dock was revived again as a training facility for stevedores and , in 1943 , became a base for the United States Navy .
By 1963 Penarth Dock closed for a second time .
During the Second World War the dock was revived again as a training facility for stevedores and , in 1943 , became a base for the United States Navy .