Last of an eight-part series Science, Salvage or Scrap?
Narrated by Tim Pigott-Smith More new discoveries have been made underwater in the last 25 years than ever before. Unique aeroplanes, submarines and great ships - like the Titanic. What should be done with them? Salvage them for scrap or save them as historic monuments? In Scapa Flow, every year, the Royal Navy conducts a service of remembrance over one of Britain's biggest war graves - HMS Royal Oak.
At Pearl Harbor, Hawaii, is a similar emotive war grave - the battleship USS Arizona. The island of Guam in the middle of the Pacific was the scene of some of the fiercest fighting in the Second World War. There, a Japanese cargo ship, sunk in 1944, lies alongside a German auxiliary cruiser, sunk in 1917. A unique memorial to two world wars.
Film editor FRANCES PARKER
BBC dive team film cameramen: JOHN BECK. BRIAN MARDEN. JONES DAVE BRABANTS
Series editor BRUCE NORMAN Written and produced by DEREK TOWERS
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