Cavern Tours are available weekly on Saturdays at 1:00pm. Maximum 10 slots per tour. Reservations for tours can be made 5 months in advance. Take a guided tour through Kickapoo Cavern to see the largest cave formations in the State of Texas. Slightly acidic groundwater took millions of years to create this cavern in 110 million-year-old limestone. You will be able to see stalactites, stalagmites, columns, helictites, drapery, cave popcorn, cave coral, soda straws, etc.