Looking at their website I find a few gaps in my understanding. I don't know if the information is hidden or that I'm just incapable of navigating the site.
Anyway, the big ones for me are:
Is membership 12 months from when you join or is there a fixed membership year? And, I see I could join alone or I could add mllePB for more monies. Is this necessary? I mean, if we turn up at a site are they not going to let her in or will do so but charge more for a non-member?
I was a member in the eighties and nineties but I remember so little about the joys of membership except the excellent bargains we got travelling as a family to forrin parts in the spring and summer.