Carlsbad Caverns National Park Published July 25, 2015 at 960 × 1280 in Inside the Big Room – Carlsbad Caverns National Park ← Previous Next → Geologic formations in the Carlsbad Caverns National Park Carlsbad Caverns was a really cool stop with over a mile trail in the caverns and we took a special tour of the King’s Room Cavern, an off shoot of the main cavern.