I had a friend who thought like you about National Trust properties, but its only feasible with a very large group and only if they know what their doing.
I'm keeping it small, "Keep It Simple, Stupid" principle, large groups need too much of everything, too much food, too much water, and its hard to keep a large group hidden.
I'm keeping it small, "Keep It Simple, Stupid" principle, large groups need too much of everything, too much food, too much water, and its hard to keep a large group hidden.