The battleship SMS Markgraf at Scapa Flow

This is the Margraf, a 25000 ton Konig class battleship which turned turtle as she was scuttled at the end of WW1. We did two short dives on her using just air, dive buddy was Phil Harper, Max depth 42m. the highlights of the dives were a 15 cm gun, the armoured belt, intact portholes, an Imperial German Navy flag and the twin rudders