If you don't know about the Nutty Putty cave, it's a cave system that has now been permanently closed after the horrible death of a caver who got stuck there. Look up details at your own peril. The name "Nutty Putty" is unrelated to the death and references the putty-like soft clay found in many of the passages, so you may cleanse yourself of any horrid mental images brought upon by speculation on the name.