Stopped at a little pet-friendly motel in Carlsbad for the night. Nine hours on the road, Perry was pretty excited to finally get out of her cage. She was jumping all over the windows, climbing in the tub, running over the table.... finally she climbed up in the cubbyhole next to our bed, stuck her paws over the side, and passed out.... ha... love that cat.
Carlsbad Caverns is fantastic. One of my favorite National Parks... created by an inland sea that dried up - The caverns were carved by sulfuric acid which was created by the combination of oxygen in water with hydrogen sulfide gas from the oil deposits far below the surface. As the mountains rose, the water table dropped, dissolving the limestone and leaving behind immense underground chambers. The 'Big Room' at Carlsbad is large enough to hold six football fields. Pat and I hiked in 750 feet below the earth's surface - still amazes me when I think about it.
Later that evening, Pat and I returned to the cave to watch the Mexican freetails bat fly - something that I have never had the chance to experience.... The audience is so silent during the bat-flight - was really beautiful.