Adding a bit context:
Last time I was there when I was bikepacking couple of years ago, there was a concrete wall/fence. It was not new, it was at different places crumbled down to the point anyone could pass through on foot. While the area is private, it was possible to pass the concrete fence/wall. However, the passage was nothing like a gate, you still had to climb over a bit since the entrance was not gate-like passage specifically made for that.