Not quite my wheelhouse I’m afraid. You’re not far from Exmoor though for walks and about 40 minutes from Lyme Regis/Beer kind of area which have nice beaches etc but are likely to be really busy. For an extra 10 minutes or so drive it’d be worth going to somewhere like Budleigh Salterton instead, nice little market town and beach, much quieter. You’ll be pretty much right on the Devon/Somerset/Dorset border so well placed for different trips etc.