Ummm... You are probably going to argue that walking through a yard is different than walking through a living room. Don't have to you did for me. Big differance unless the bypasser walks thru your camper.
I owned a townhouse I had to get permission to enter the yard that I OWNED. I also and my contracts says I can come in at any reasonable hour to inspect.
I agree that walking thru a site and bothering folks that are trying to relax is not cool, but if there is space and it is just to cut off some steps what is the problem?