Name that walk

Following on from Johnny's name that pub, here is one for you. Name the walk on which this photo was take. There is a fantastic prize of a day's walking in the company of the country's favourite walkers for the person who comes within a hundred miles of the scene.
Please note that anybody known to have consulted Johnny's Early Ooters photos will be delt with in a severe manner, so severe that it has not yet been thought of . So be warned.
Look forward to your efforts
Jimmy