Rating - Poor
"...The circle is so large that unless you are in the air you probably won't appreciate it. The stones are just blocks here and there and scattered over a large area. If you need to choose a stone circle, obviously Stonehenge is the way to go."
If I wasn't on my way home I would have offered a guided tour. Whats fair do you think, £30-40 for an hour or so, for a personal guide? Less per person if it was a small group I suppose.
I imagine it would be v easy to make money that way during the summer. It seems coach loads of people arrive and wander around on their own without a clue as to what they are looking at. I'm sure you'd be banned by the NT before you could say "crop circle calendar" if they caught you at it though.