1st pic is showing the fencing I use. Its plastic but seems to work most of the time. If they want in bad enough they can tear that wire fencing out too. I'm also using coyote urine and chlorine tablets right now. Later I'll add some hot pepper spray to the arsenal.
2nd pic is looking in the entrance to a briar patch site.
3rd pic is the log I walk on to get to that entrance.
4th pic is of the logs I use to get off the human path and on to some deer trails without me leaving a trail.