Sadly, virtually everything is gated, and the two that have guided tours are separate - so you have to pay more to see them both - we only went in Church House, as it was eight quid. I thought that was a bit skanky, personally, but I guess they have to keep the place clean, and pay staff, etc. I did get the impression that it's possible to arrange visits into the other ones though. There's also some lovely exposed phreatic tubes at the west end on the north side, and we had fun slithering into the middle one and coming out of another higher up (out of shot). I actually felt like a big daft kid again - which is a good thing! To be honest, it's worth going just to walk around, which is free, as far as I can tell, as there's lots of cave remnants to look at everywhere - it's all unroofed phreatic, as far as I could tell, dipping to the east, with numerous vadose inlets running in at 90?.