National Geographic : 1944 Aug
Royal Dutch Air Service Walcheren Dikes and Jetties Hold Back the Sea, but Landing Craft Could Beachon These Smooth Sands Jetties might impede the charging craft, yet they would provide cover for debarking troops. A shoal parallels thisbeach ahalf mile out. Landing craft would have to time their approach with a tidal rise of 12 to 15 feet. Leveelike sand dunes, pushed up by the sea, were anchoredbygrasses. Where broken bystorm, masonry dikes bridge gaps. Walcheren, mostly below sea level, represents victory for the Dutch in the ceaseless fight with theNorth Sea.