Spelunking

I used to do a fair amount of spelunking in southern Illinois and Indiana when I was in high school. We'd hike out through some farmer's field in the hills to a hidden cave entrance only hard-core spelunkers knew about and go down, maybe crawling on our bellies for awhile before coming into a huge cavern or perhaps hauling in an inflatable raft to an underground river with blind albino fish. But we never did anything like THESE. Click on either pic to see some really amazing cave pictures...