Learn MoreHidden for over 10,000 years, Inner Space Cavern is one of the best preserved caves in Texas.
Inner Space can entertain people of all ages! If the tour doesn't interest you, there is also a playground, a mining area, a gift shop, and several displays of fossils that were found right here in the cave.
No food, drink, candy, gum, backpacks, wheelchairs, strollers, or tripods allowed in the cave.
Wear comfortable walking shoes and bring your camera!
We accept reservations for groups of 20 or more. If your party is not large enough to make a reservation, you will be on the next available tour when you arrive.
If someone in your party has a military id, we will apply a discount of $2 to every ticket that you purchase. With AAA, the difference is $1.50 for adults and $0.95 for children. In order to receive the group rate, you must have an advance reservation for a group of 20 or more.
On a typical day, the longest wait for a tour will be 25-30 minutes. When tours start to sell out on some of our busier days (during Spring Break and summer), the wait can be up to an hour. Please be aware, we have a large amount of field trips visit our facility in the spring and fall. Please call ahead or check our Events Calendar for more information on tour availability during these times, as we cannot send commercial guests with the schools.
The temperature in the cavern is about 72 F with 98% humidity. It feels to be about 80 degrees. Between the temperature, humidity, and walking you will stay warm.
No! It takes rainwater 3-4 days to reach the cavern. It would take an extremely large amount of rainfall to affect operating hours.
For the Adventure Tour, we recommend closed-toed shoes with good traction. Closed-toed shoes are required for the Hidden Passages and Wild Cave Tours. Tennis shoes or hiking boots are the best shoes for touring the cavern.
For the Wild Cave Tour a minimum of 2 guests and a maximum of 8 can go at once. Call for more info or to make a reservation.
Have some additional questions? Don't hesitate to ask by sending us a message or calling us directly!