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“Enchanting and Awesome Adventure”
Review of Inner Space Cavern

Inner Space Cavern
Ranked #2 of 32 things to do in Georgetown
Certificate of Excellence
More attraction details
Attraction details
Recommended length of visit: 2-3 hours
Owner description: Inner Space Cavern was discovered in 1963 by the Texas Highway Department. During construction of Interstate 35, they were required to do regulation core testing, which required them to drill into the ground. As they did this, they inadvertently drilled into the cave 8 times out of the 20 samples they took. Once they lost those 8 drill bits, they knew they hit a cave. They searched all over the surrounding area but could not find any access into the cave. So, they drilled a 2 foot wide hole down through 33.5 feet of limestone bedrock. The hole became known as the Discovery Hole as it was the very first entrance into the cave (and the only one for several months!). As they explored, they have found over five miles of cave, making Inner Space Cavern the fourth largest cavern in Texas!
Reviewed 11 March 2018

This is a perfect destination when traveling in the Austin and Round Rock area. Even locals should go. Perfect for families with good walkways and lighting through the caverns and a play and picnic area with live animals outside. The caverns are beautiful and very different from the caves on the East Coast I've been to. The tours have three levels. We went on the first with included an hour and 1/2 fairly easy walk. Some hills coming out so minimal health and energy needed. Enough lighting not to be scary for young kids. Even well traveled people like my husband and myself were in awe of the beauty of the limestone formations. They guide was knowledgeable and patient for picture takers.
There were also two other levels of tours, one with flashlights in smaller spaces and another 3 - 4 hour exploration tour.
Fantastic and worth going. Also worth the entrance fee.

Thank Carol B
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC
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"our tour guide"
in 58 reviews
"hidden passages tour"
in 16 reviews
"great tour"
in 16 reviews
"basic tour"
in 14 reviews
"hour tour"
in 13 reviews
"beautiful formations"
in 11 reviews
"nice cave"
in 9 reviews
"wild cave tour"
in 7 reviews
"gift shop"
in 17 reviews
"total darkness"
in 7 reviews
"walking tour"
in 7 reviews
"all ages"
in 25 reviews
"cool place"
in 6 reviews
"kids and adults"
in 6 reviews
"an hour and a half"
in 6 reviews
"long tour"
in 6 reviews
"great for kids"
in 7 reviews
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53 - 57 of 575 reviews

Reviewed 4 March 2018 via mobile

I have driven past this location many times and after finally visiting , I regret having waited. The caverns are beautiful inside. There are many different rock formations to see. The tour guide was highly informed and did a great job.

Thank 1973mlc
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC
Reviewed 3 March 2018

This is a good place to take people who have never seen caverns! It's not too far away and it is very interesting. Hard to believe that you are under the interstate!

Thank susan d
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC
Reviewed 3 March 2018 via mobile

Great fun for whole family. Enjoyable for all ages. Not to difficult climbing. The dark cave is amazing. Price is reasonable and has a great gift shop.

Thank Jackie K
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC
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Reviewed 28 February 2018 via mobile

If you like to visit caverns then this is the place you should go. The tour itself was about one hour and 30 minutes. When you get down into the caverns the temperature changes from chilly to very humid. Some of the areas you will be walking are fairly steep and uneven. I suggest someone in a wheelchair not go on this journey. They are very strict about not touching any of the rocks because it will damage them. We did enjoy ourselves and our tour guide, I believe her name was Brooke, was very entertaining.

Thank mgs1627
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC

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