I qualify with a line from Devon-Somerset-Dorset-Wiltshire-WestSussex-EastSussex-Surrey-Berks-Oxon-Bucks-Herts-Cambs-Norfolk. I'm attaching a screenshot of my GC-Project UK map as proof.
Caching with my son Bobcat today. He found this one while I was wandering off in completely the wrong direction. We took a finger puppet and left a kaleidoscope. This is our 10th find of the day (Bobcat has found seven of them - well done). Hopefully this should mean we now climb the 10th step of the Up the 13 Steps Challenge (I miscounted in our attempt a month back).