Feeling stroppy enough to register & post (having been a guest reader hereabouts for years...).
I have just been in Prid behind a large group (9) who entered the cave at 7pm. I'm not sure it they paid, but they certainly didn't log onto the blackboard as requested by the sign very clearly. Silly behaviour risks access for all of us. As I was on my own I didn't really feel that I could or should speak to them, and I doubt that they read this forum, but nevertheless...