Gaz, it takes all kinds. Some people read Stephen King, watch horror movies or bungee jump to get that pleasant shudder, others like caves.. For me, these stalactite formations are well worth seeing. As you say, as long as nobody goes in without the appropriate training or without going through BDS, unsupervised. And yes, Elbert, you got the idea! Not so much beer gut but boobs and butt in this case, but that restriction looks pretty tight! If I get stuck, Chip may have to lay an umbilical with air down there, so I can stay, fasting, till I can wiggle back out.