Scapa Flow, one of the greatest naval bases in history, resonates through the annals of the Royal Navy during the two great wars of the twentieth century.It was from there that the Grand Fleet sailed to Jutland in 1916, from there that Russian convoys set off and it was in that beautiful, bleak anchorage that the German High Seas fleet committed the greatest act of suicide ever seen at sea - 'The Grand Scuttle' - before being raised and scrapped in one of the most astonishing examples of maritime salvage. It was also in Scapa that we have our last photographs of Kitchener before he boarded the Hampshire, sunk by mine off Marwick Head.