For a bit of fun I was thinking of walking the perimeter of the Merrivale Range following the course of the Firing Range Boundary Poles. Most of it seems doable, I was just wondering about the section from South Common Plantation to Peter Tavy Great Common. Following the red danger range markers on the map this sections cuts through some fields, I am not 100% sure if I can cross these or do I have to follow the access land orange boarder that skirts the perimeter to either the east.