The final road once you're in Marckworth Forest is full of potholes. If you are careful, most cars can make it. There are lots of gated roads if you want to do more exploring. We went up another one after going to the lookout site. Last bit is no trail, but you can make out where others have gone. This could be quite overgrown in late spring to fall. It was fine in late March. There are no remnants we could see and no views.