Here is another pano from my May trip to the Southwest. Unlike a pano of a big landscape, shooting a pano inside a cave like this is very challenging. It is only with PP that you can get even illumination in a shot like this with such high DR. Even with the naked eye in the cave, you can't see all the detail that you can get after PP.

Carlsbad Caverns is the most impressive cave system I have seen and I highly recommend a visit.