In reply to Legs:
YHA at Okehampton
or
Gutter Tor Refuge (Gutter Tor Refuge is owned by the Royal Navy and is a Non-Publicly funded self sufficient bunkhouse which is situated at GR 581673 on Dartmoor and available for private hire. There is accommodation for 28 personnel and a camping area if required.) Gutter Tor Refuge civ: 01752 811322