Hi Dave,
Welcome. I am originally from your neck of the woods and therefore I can offer both advice and sympathy
You're pretty isolated there in Seaton so, unless there is a fantasic club in the town, you're stuck with/empowered by the internet.
My guess would be that Exeter is your best bet, but I know that this is a long trip (even though non-natives using Google Maps will argue otherwise).
All is not lost, though.
Ask yourself why you want to be part of a club. And then spend a few weeks using this site. Nothing beats being shown stuff, but my experience of '80s South West magic circles etc. is pretty poor compared to the sort of information you can find or request from forums like this.
Best wishes,
Ted.