Recently there was long thread about the BCA. I can now post possible answers to some of the questions, such as "Why is the BCA still raising membership prices when there is a significant amount still left in its coffers?"
Hob Holes, Runswick Bay c.4 mins (and jet & alum mine workings mentioned from 10.30 to 12 mins):
https://www.bbc.co.uk/iplayer/episode/m000brtk/yorkshire-walks-series-1-3-runswick-bay-to-whitby
