Not sure oxy-acetylene is any more effort than an angle grinder, if you have a portable set-up and you don't need to carry it far, but it's a hell of a lot quieter if you didn't want to draw attention.Have a look at the Norpex door in Nenthead mines. Someone dragged a gas axe to the back of Rampgill Level to cut the thing off. Now that was some serious effort!
Box mines was on a Derbyshire key system & now there is no access due to all & sundry being able to get in (but not find their way out)...
The problem with that argument is that most of the leader only caves are still stunningly beautiful, the locked caves are still nice & the open access ones are pretty much trashed (unless they are really difficult to get into)
And yes, nothing like a natural barrier. We deliberately left a mine we'd dug open chest deep in water as it was right by the road. If you are serious enough to brave the water, you are probably going to be ok
Painter's palette in easegill was definitely cavers only & they managed to walk all over it (until it was taped off), even though there was plenty of space to walk around.
Well, Hunters' lodge inn sink was only a couple of years ago & they had to borrow the key to get in. Browns folly was also getting trashed regularly at about the same time. Painter's palette in easegill was definitely cavers only & they managed to walk all over it (until it was taped off), even though there was plenty of space to walk around.(I refer the honourable gentleman to the current state of littering in the general countryside...)
No, they are locked due to every cave that's been left open having suffered unnecessary damage over many years,
If you actually look around you'll see muddy handprints all over the place in regularly visited sites.
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