Walking along the NDW here, looking over the fence to the South, there is an amazing quite deep wooded valley, with an unmade track running down the middle.  Alongside the NDW near the (locked) gate, and  about half way down there is a substantial partially cleared bank with a wooden bench right near the edge. On one of my visits there was a young woman sitting on it. I was tempted to call out, but she was obviously deep in thought so I left her in peace.
I have no idea what the place is called, or who owns it.