I’m in Durham, there are quite a few folks into looking round the abandoned mines in the Co. Durham region. I found mines a nice place to start getting into the underground world (I appreciate it’s not everyone’s cup of tea).
I also do a bit with the Black Sheep Diggers (lovely bunch) as Nidderdale is only and 1hr15 from Durham.
Obviously things are a bit challenging at the moment, and in about an hour O expect things to get a bit more strict. However if you’re interested I’m happy for you to give me a shout.