It has been a while (7 months to be exact) since we spent any time under the depths of the earth, and even though no caving experience can possibly top Vietnam’s Son Doong Cave, we knew we would still be dazzled with amazement by New Mexico’s Carlsbad Caverns. Situated in the Chihuahuan Desert, America’s second largest desert which straddles the U.S.-Mexican border, the limestone chambers of Carlsbad Caverns is the 5th largest chamber in the nation.  We found a quiet, peaceful place to camp in the middle of the desert on BLM land about 20 miles outside of the park.  Desert jewels such…