In reply to Removed Usersebastian74:
We've had torrential rain here on Dartmoor for over 24 hours, with flood warnings on many of the local rivers. Sat forecast is rain and Sun is heavy rain. The Dewerstone will be very slimy especially under the trees. Your best bet would be one of the tors or Baggy, which dry quicker, but quite honestly I wouldn't drive for 3 hours this weekend, at least not in this direction.