In reply to nawface:
There's a couple of sites just outside Buckfastleigh in Devon that might tick some boxes. I've stayed at breara farm campsite, very lovely, with the river dart running through it, which you can swim in, there's also another site called Churchill farm, I haven't stayed there but seems they have lots of sheep and seems to get good reviews.
Both close to Buckfastleigh, with a few pubs and other bits n bobs (and climbing wall!), it's a nice part of the world in general at the foot of the moors.
Looks like there's a few in the area to peruse, hope you have a nice trip!