In reply to Ava Adore:
Not stayed there but Widecombe is a nice spot (if a little full of grockles), good pub (Rugglestone Inn) and a stones throw from some great climbing and bouldering (Haytor/Lowman/Bonehill/Hound Tor etc).
There's also a bunkhouse/camping at Holne (call Holne Barn I think) and Runnage Farm bunkhouse that I can think of that aren't mentioned above, not sure if either sleep 20+ though.