© Licensed to London News Pictures.16/07/2016. Bristol, UK.  Cardboard boat race at the Bristol Harbour Festival. The boats must be made primarily of cardboard, and some sink. The festival started in 1971when a bunch of boat owners headed to the harbour to save<br /> the docks from being filled in. They succeeded, and the Bristol Harbour Festival has been going ever since. This year's maritime programme features sea rescue<br /> dogs, historic ships, boat racing, flyboarding, steamboats and more. Photo credit : Simon Chapman/LNP
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