Put a wire fence around?
I'm working on it. Lots of chores to do and that is on the list. I'm limited to 6 feet, which does the job unless the deer are determined. I'll probably go with wood since they are less likely to jump if they can't see what's on the other side (such as a giant pricker bush), or so I've been told.
I've seen video of them easily clearing 8 feet when running. I also read that some forest service folks have seen them clear 12 feet.