This one's on my doorstep, i only just saw this post too. Loads to see if you take the road between Salisbury and Blandford Forum. If you stop at any obvious bit seen from the road, then take it from there on foot you will be rewarded big time. It's a beautiful landscape, be careful on the roads around there this weekend though, the Endorse it in Dorset festival is on, so expect crazies here there and everywhere!