lynton & lynmouth at the top of exmoor : start in lynmouth,get the funicular railway thing up the hill, have a cream tea at the top and then walk back down to the bottom. brilliant.
mid devon at bickleigh near tiverton on the exeter road. there is the fishermans cott (pub/ restraunt ) fantastic, right on the river, smashing veiw, great food , the bridge is the one sang about in "bridge over troubled water" and bickleigh mill is there also.
beer , nr seaton is a lovely little place, i haven't been there for ages so don't know if it's changed.
polperro, near looe in cornwall is a lovely little old fishing village.some lovely real ales there as well. it may get a little busy in summer but i went in late spring and it was fine.
exeter has a lovely quayside. you can rent canoes and cycles if you wish.if you paddle upstream to the weir there is a nice pub to get refreshed in before paddling back.
pony trekking on dartmoor is another, relaxing and great view.
try a cycle ride along the tarka trail cycle path. (bikes can be hired )
http://www.staynorthdevon.co.uk/site.htm you may have to copy and paste.
there is so much you could do, hope you'll have time. lucky sods, my missus doesn't like long bike trips, so i'll have to go on my own.
as you may have guessed i come from devon originally.