Divers explore inside the upturned blockship Tabarka in Burra Sound, in the Orkney Islands, Scotland May 8, 2014. Tabarka was deliberately sunk during WWII to try and block the path of German U-Boats. During both World Wars, Scapa Flow was an important British naval base, and the site of significant loss of life. Following the end of World War One, 74 German warships were interned there, and on June 21, 1919 most were deliberately sunk, or scuttled, at the orders of German Rear Admiral Ludwig Von Reuter, who mistakenly thought that the Armistice had broken down and wanted to prevent the British from using the ships. Now Scapa Flow is a popular site for divers, who explore the few wrecks that still remain at the bottom. The year 2014 marks the 100th anniversary of the start of the First World War. Picture taken May 8, 2014. REUTERS/Nigel Roddis (BRITAIN - Tags: CONFLICT ANNIVERSARY ENVIRONMENT SOCIETY MARITIME)

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