On the coast hear here, is a largish marsh, with an old castle plonked in the middle - Camber Castle - and which is topped up by a lovely small town, Winchelsea.
The old town was lost to the sea in the late 1200s, and apart from that, the existing town reigns supreme as a very pleasant place to visit! I'm always fascinated by stories of vanished towns and villages, and while I revere Winchelsea - partly because I proposed to my Senora soon after a 'session' in The New Inn, and also spent most of my hoeymoon money on the stag party in the same place, the story associated with the demise of the original town is still intriguing!
For some reason though, I stumbled on another tragedy of a lost village the other day - Hallsands, in Devon.