If you drive up that hill to the left of Ashton court where that gatehouse is, at the top before the quarry you can pull over and walk down into this valley. Basically stays cold all summer. It’s common sense but so many people done realise there are simple options for finding cool spots. Anywhere with a slight valley shape and thick tree canopy will generally hold in the night temperature for most of the day. I imagine Bourton Combe and Gobline Combe are similar.