GeoGraph - photograph every grid square

"Greater Sark and Little Sark to the south are connected by a narrow isthmus called La Coupée which is 300 feet (91 m) long and has a drop of 330 feet (100 m) on each side. Protective railings were erected in 1900; before then, children would crawl across on their hands and knees to avoid being blown over the edge. There is a narrow concrete road covering the entirety of the isthmus that was built in 1945 by German prisoners of war under the direction of the Royal Engineers".
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