In reply to Obi Wan:
I haven't been to look, but someone told me there was a decent bouldering wall at Witches. I think eliminates were mentioned.
I've done some nice bouldering at Winewall quarry. Is that in your area?
There is a long traverse to do at Rabbit Delf or Star Delf. Whichever one you have to walk across the fields to get to. The cave there is sadly made of cheese, but there is a lowball lip trav of a boulder to do. I cleaned it off years ago but never got round to it. Probably overgrown again now.
I heard someone had done some bouldering at Kemp Delf, but I don't know the details.