Have a crack at Ding-Dong - well recommended, especially if you're interested in Dead Cows Heads, Whitriggs Horse Level is a bit shaky but lots to see + some nice natural stuff. Henning Valley Cave on the other side of the Valley is a bit thrutchy but fascinating.
Finally there is a large hole in between Bell Hill and the Abbatoir which is pretty interesting but rather wet this time of year.
They all share one thing in common. They are DISGUSTINGLY DIRTY! 😉
The finest workers in stone are not copper or steel tools, but the gentle touches of air and water working at their leisure with a liberal allowance of time.
Henry David Thoreau