Sea Wall: St Donat's Castle - The sea wall at St Donat's Castle on the South Wales coast near Llantwit Major. The castle is now a sixth form college called Atlantic College. It was once owned by newspaper magnate Randolph Hearst who renovated the building. Among guests at the many lavish parties held there were Charlie Chaplin, Douglas Fairbanks and a young JF Kennedy. Flickr - Photo Sharing!