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Inner Space Cavern

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Address: 4200 South IH 35, Georgetown, TX 78627
Phone Number: 512 863 5545
Today
9:00 am - 4:00 pm
Closed now
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Hours:
Sun 11:00 am - 5:00 pm
Mon - Fri 9:00 am - 4:00 pm
Sat 10:00 am - 5:00 pm

TripAdvisor Reviewer Highlights

Read all 218 reviews
Visitor rating
  • 93
    Excellent
  • 105
    Very good
  • 17
    Average
  • 3
    Poor
  • 0
    Terrible
Fun destination

If you have never been to a cave then go here. They are very informative and constantly do school field trips so they are really good at giving simple explanations that us common... read more

4 of 5 starsReviewed March 27, 2015
Reynoldsbyx
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218 Reviews from our TripAdvisor Community

Date | Rating
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English first
Senior Contributor
34 reviews 34 reviews
6 attraction reviews
2 helpful votes 2 helpful votes
4 of 5 stars Reviewed March 27, 2015 NEW

If you have never been to a cave then go here. They are very informative and constantly do school field trips so they are really good at giving simple explanations that us common people can actually understand. Overall it is good. Kind of expensive in my opinion, but I love taking new cave dwellers there.

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Fort Worth, Texas
Senior Contributor
37 reviews 37 reviews
10 attraction reviews
7 helpful votes 7 helpful votes
4 of 5 stars Reviewed March 26, 2015 NEW

After passing by it many times, we decided to make the stop. That was a good decision. There is three tours. The first is the Adventure tour. Unless you have physical issues or have very small children, I would not suggest this tour. It is a lighted tour and you follow a path with a guide. Not very adventurous. The... More 

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Tokai, South Africa
Contributor
12 reviews 12 reviews
5 attraction reviews
15 helpful votes 15 helpful votes
4 of 5 stars Reviewed March 24, 2015 NEW

If you are going to take an afternoon walk anyway, why not do it in a cave? We did the middle tour, not the hectic one (which seemed claustrophobic and muddy) and not the easy one either. We saw some rock formations and bats. The guide was fun rather than boring and overly academic, which v was refreshing. I've been... More 

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Big Island, Hawaii
Top Contributor
168 reviews 168 reviews
84 attraction reviews
158 helpful votes 158 helpful votes
5 of 5 stars Reviewed March 22, 2015 via mobile

We definitely enjoyed going to this cave and would recommend it to others. There are good limestone formations.

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Austin
Senior Contributor
30 reviews 30 reviews
6 attraction reviews
4 helpful votes 4 helpful votes
5 of 5 stars Reviewed March 19, 2015

Inner Space was discovered roughly fifty years ago when I-35 was being constructed. Test holes were being drilled for the highway when one hit a blank spot. One lucky individual was lowered down by rope to see what was there. Now you can see it too, and the hole above in the giant cavern area. Some say all caves are... More 

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Waco, Texas
Senior Contributor
28 reviews 28 reviews
6 attraction reviews
6 helpful votes 6 helpful votes
5 of 5 stars Reviewed March 16, 2015

This was great family fun. We went on the hidden passages tour. It was interesting & seeing tiny bats was pretty cool actually. They don't bother people and only saw a few. Our guide was funny & a lot of fun. He kept us entertained.

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Austin, Texas
Reviewer
3 reviews 3 reviews
5 of 5 stars Reviewed March 13, 2015

The Inner space Cavern was discovered while building the main highway from San Antonio to Dallas (IH 35). When drilling for stability checks, the engineers hit a void hole and lowered a man down with just a hat light which was later discovered to be the largest room of the cavern. It's one of the only living caverns in Texas.... More 

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Keller, Texas
Reviewer
5 reviews 5 reviews
2 helpful votes 2 helpful votes
5 of 5 stars Reviewed March 11, 2015 via mobile

We have driven by the Inner Space Caverns everytime we drive to Austin and have never stopped before. We stopped today as a last adventure on our spring break trip. My husband really wanted to do the Hidden Passage Tour which is not lit (you use flaslights)and unpaved. We had our three kids (10,11,12) with us so we thought it... More 

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Round Rock, Texas
Senior Contributor
41 reviews 41 reviews
5 attraction reviews
16 helpful votes 16 helpful votes
4 of 5 stars Reviewed March 9, 2015

I wasn't expecting much to be honest, but I was pleasantly surprised. What a nice place. Knowledgeable and enthusiastic staff and guides. Interesting story on how the cave was found constructing the highway. Nice gift shop and grounds. Easily walk-able for most kids and older adults for the general tour. Wasn't very cheap but what can you expect when it... More 

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Georgetown, Texas
Reviewer
5 reviews 5 reviews
4 of 5 stars Reviewed February 22, 2015

Easy hike, really nice guides, our grandkids love going there. The cavern has some interesting formations and is right next to I-35, so very easy to access

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Questions & Answers

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Pflugerville, Texas
9 days ago
Pflugerville, Texas

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Typical questions asked:
  • Do I have to buy a ticket for my infant?
  • How do I get there using public transportation?
  • Is there a restaurant or café onsite?