Personally... don't think it's heritage lost. What's the alternative, companies like Zipworld not using the underground quarries, they are pumping and maintaining stuff. Consider Gloddfa Ganol back in the day, versus the state of Oakley middle levels now. at Llechwedd they even show the tourists a jwmpar, point out shot holes etc. Not saying it is super educational but someone might learn something once in a while. And it's not like they are blasting the quarries flat and smoothing with concrete to put in the crazy golf
I was chatting in Feb to someone who works for them, he told me that they were going to have a new underground attraction soon (but said nothing more) .. maybe he meant this? maybe there's something more?
He also said that during Covid there was no work for most staff and many of the staff moved away so when it re-opened they've had to retrain a load of new people and the last couple of years were very tough. This creates jobs (maybe disproportionately non local though?) and the tourists have a car park where they won't clog the roads, like near Pen y pass, Ogwen valley and a million more examples.
I think it's a good idea, although I'd hate to know what they'd charge for using it. Maybe if Robin is paying...
