clownpunchers: Good comments, thanks. I’m still toying with the idea but do realistically need to assess committments if I do it, so as not to put out something I can’t maintain.
Reb: Yes, you’re right, but I meant about size of trail and hides, really. Not as an actual charity ethos. I couldn’t even mention the name of a charity I’m associated with when placing a cache on their property with their permission!