That was what we were told (hadn't asked for permission as opposed to hadn't got permission if you see what I mean). Motorbikes have been banned up there, couple of deaths apparently. Hasn't stopped them riding though, quite a few up there when we were building the pump track. One guy was up there sculpting stuff for the motorbikes. He came over to find out what we were doing, told us a bit about the history of the quarry and gave a hand building the pumptrack.
Don't think there are any formal plans for anything though, could do with a damn good clean up though, flytippers paradise.