Chocolate lab for size reference.
This Dolmen is further down the track than Postman’s directions suggest. It’s almost a mile from the tarmac road to where the footpath forks. At the fork (after a makeshift gate and fence) turn left and enjoy the view...
Image credit: Derfel
My directions don't suggest any distance at all, google earth says its barely more than half a mile, but you got there and that's the main thing, its a star site isn't it.