I was recently given permission to visit a section of the Dorset cursus that runs through a farm south-west of Salisbury. I was armed with aerial photos, dowsing rods and camera, with the farm owner being very helpful to me. The atmosphere was typical of the area, with remains of our ancestors culture all around, in barrows, pits, earth henges and the dip of the cursus itself.
The ambience was pleasing, but without extra special intensity.
From a dowsing perspective, the outer rim held extra water, presumably related to a ditch within the cursus perimeter, with parallel lines indicating water flow into the feature from slightly higher ground nearby.
No special emotional or esoteric experiences, other than feeling very happy and privileged to be there