Travel through a half-mile of the largest and most spectacular show cavern in Texas. You'll walk 180 feet below the ground, while listening to our knowledgeable tour guide. See awe-inspiring, ancient formations centuries in the making and still growing today, such as amazing stalagmites, stalactites, flowstones, chandeliers and soda straws. Important information about the experience: Take pictures along the way because this is one walk through time that you will never want to forget. Departure Time: Every 10-40 minutes Tour Duration: about 1 hour Walking Distance: 3/4 mile (1.20 km) INCLUDES STAIRS Tour Depth: 180 ft. (54.86 m) Cavern Temp: 70° Relative Humidity: 99% Please wear comfortable walking shoes which provide good traction on steep, wet surfaces. Strollers are not recommended