Ahh... Okay. I live in New Zealand, so I figured they were caves under a cathedral or something like that.
It sounds fascinating and beautiful. I have explored some small caves here in NZ - they were small tunnels filled with glow-worms and we had to slide along like we were on a water-slide. By the end I was feeling quite claustrophobic and glad to be outside again. But phew... I just googled up Cathedral Caverns and they are HUGE! And majestic. Hopefully one day I will get to walk in them myself. What was it like working on an arch dig? What were you looking for?
Thanks for the friendship, too.