The Bat Cave with a monitor. "The Devil’s Dining Room, a 50-foot wide and 90-foot deep sinkhole that also is the home of a bat colony. The sinkhole is fenced in, protecting onlookers from falling in – although fencing doesn’t protect the bats from escaping! Signage close by explains the geology of the sinkhole and describes the bat habitat." (I didn't realize this was the Devil's Dining Room as a couple times I've hiked out here we've looked for it, ha!)