Some friendly advice: Please, please, please invest in a helmet, you might just live longer :ohmygod: In all honesty, its reckless to be doing any mine exploring without one, but especially so if you're climbing ladders and anything vaguely adventurous in these places we all love...
Donning helmet, you'll have at least a *measure* of head protection in the event of a fall. Without, falling from one of those ladders, even just a short distance, you could be looking at serious injury, and a rescue event. And that will cause all sorts of problems and attention to jeopardise all the efforts that Roy and others have gone to...
Just saying...
J
Over-ground, underground, wombling free...