I have only lived here since 1999. We have a nice little town.
Once the town was on the coast directly but over the years our side of the Channel silted up. Resulting in the capital of the "Cinque Ports" becoming further from the sea itself. We still have a beach and a promenade but they are further from the town centre.
In the photo is the Royal Military Canal. Built in case Napoleon invaded and to be used as a moat to delay and stop the invaders. They never came and the canal is a national monument.