If you walk down Hall Drive you’ll see the little triangle at the bottom. It’s a popular tourist destination in Summer (and Winter) with lots of cars coming for a quick spin around it.
Actually we think most of them are lost and are simply trying to find the river, and don’t quite make the right turn. As a consquence you’ll see lots of lost vehicles turning round and cutting the corners off the triangle. The area is quite prone to being muddy and the verges are very soft and more than the odd vehicle has got stuck.
Thanks to everyone who tidied up afterwards