King's Palace Tour departs from the underground rest area in Carlsbad Cavern. This 1.5-hour tour covers 1 mile and descends to the deepest part of the cave open to the public, 830 feet below the surface. Cave formations include helictites, draperies, columns and soda straws. Park rangers conduct blackouts during the tour, turning off the artificial lights briefly to underscore the cave's natural darkness.
Note: The tour is limited to a maximum of 55 participants and requires walking up a very steep hill at the conclusion.