The Great Orme Exploration Society (GOES) and Great Orme Mines (GOM) and two separate entities. GOES is run as a club and GOM is run as a business. The GOES AGM is held at the GOM mine site and both parties are on friendly terms. GOES regularly access shafts/systems within the GOES leasehold containing Bronze Age workings.
And indeed, anybody joining GOES can do the following "Membership allows the opportunity for mine exploration subject to the rules of GOES, and attendance at all functions, field trips, meetings etc."
I hope that hasn't confused things even more 😉
p.s. Don't give up on the trips.