About 350 miles long, the English Channel separates southern England from northern France. William the Conqueror crossed these waters to become king of England after the Norman Conquest of 1066. The most triumphant crossing unfolded on D-Day, when Allied troops landed on Normandy’s shores. The channel’s narrowest point stretches about 20 miles between Dover and Calais. Dover’s famed cliffs can be seen from a distance as a long white strip resting on the horizon.
