I'm taking the family to Cave Country Kentucky. Specifically Mammoth Cave. Anybody been? I'm curious in particular about the Historic Tour and "Fat Man's Misery" and "Tall Man's Agony." I'm 6'5" and not particularly skinny, although I wouldn't say that I am "fat" either. Slightly claustrophobic and weighing my options. Anyone been? How tight is it. I've looked at pics online and it looks doable but I have no frame of reference for how tall these people are in the pictures.