Thanks!!! The three Sandy sites are Caesar's Camp, Galley Hill and Sandy Lodge. Haven't visited them for over ten years, nice vibe. Wish lidar'd been around then. Just noticed there's another intriguing but destroyed Bedfordshire TMA site might be worth: Cardington causewayed enclosure. St David's Head'd do for St Justinian/Rhosson. ..hoping to get back that way this year. (Just off to Ewden/Broomhead - cheers for trying - for the third time in five days :) )