The stern of HMS Nasturtium

Even those vessels that suffered catastrophic damage when they struck a mine are sufficiently intact for divers to be able to identify many of their original features . For instance , HMS Southwold broke into two parts , with the bow and the stern being 300 metres away from each other , thus requiring separate dives . Its guns , unused depth charges and many other features make this wreck a firm favourite among technical divers . Some other wrecks that do not surpass the 75-metre mark are the minesweeping sloop HMS Nasturtium , the motor torpedo boat Schnellboot S-31 and a range of aircraft