Well Howard did rather put out a challenge and happy to take it up
There was a brilliant program about traditional dance in the towns and villages of England on BBC4 a couple of weeks before Christmas, it's still available on iPlayer and will probably be repeated.
http://www.bbc.co.uk/iplayer/episode/b00wgrtr/Still_Folk_Dancing..._After_All_These_Years/
A lot of these were modern or resurrected traditions, and most of them would send the health and safety guys doolally, especially as they are mostly based around a considerable amount of imbibing. The main message of the program was the people love them, they're great for building community spirit even in those who have no real interest in the tradition, and are good for promoting the towns and bringing in visitors.
Deal have had their Hoodeners revived about 10 or 12 years ago and have an annual folk festival, and Whitstable revived their Oyster festival quite recently and it's a successful crowd puller. I'm not ignoring that we have the Dover Pageant but this is a serious question for the local historians out there - is there a maritime based dance or musical tradition that could be revived in Dover?