Are you familiar with the south coast of England
danny la rouge ? It's quite a strange place, or at least it is for anyone more familiar with coasts at the other end of our island. Dungeness is worth visiting even if it's not quite as good as it was 20 years ago before too many awful london types "discovered" it and started building expensive holiday homes. (I discovered it about 19 years ago but have not built any holiday homes there)
Rye I think of as one of the posher south coast towns. It's not actually on the coast anymore, as others have already said. There are antique shops and old school conservative voters.
Sussex is a place where quite a bit of old folk tradition seems to survive. You might be interested in stuff like the bonfire societies. The most famous Sussex bonfire night is in Lewes but lots of other places do smaller ones and there might be some on already, around the end of September.