I remember years ago as a country music entertainer performing in the town of Carlsbad, New Mexico. For exercise we would go to the caverns and jog through them, down the winding stairs, up and around all the formations. It was blistering hot outside, but in the caverns it remained around 56 degrees. Quite comfortable for decending some 750 feet into the magical underworld. On a recent reunion trip to specifically photograph in HDR, we chose to take the elevator down since we were carrying the tripod and photo gear. That was our exercise. This quiet underground cavern system is huge. The formation you see in the photo, I imagine is 50 feet tall, though in the cavern it’s hard to sense distance and depth. They say this part of the cavern system we were in could fit into two football fields. I believe it. It’s definitely out of this world!
Carlsbad Caverns-New Mexico