Best time to visit
Arrive within the first hour of opening for the shortest queues and best photo light.
Last reviewed June 2026 by James Morgan. AI-assisted, human-edited. Our editorial standards
Discovered by accident during highway drilling, this 10,000-year-old Texas cavern offers everything from a paved guided stroll to a crawl-and-climb wild cave trek.
Hidden underground for over 10,000 years until a highway crew drilled into it, Inner Space Cavern reveals vast chambers, dramatic formations, and traces of prehistoric animal life.
What you'll see and do - Take the Adventure Tour, a guided walk on paved, lit trails through the cave's largest and most decorated areas. - Go deeper on the Hidden Passages Tour, a rugged flashlight exploration (not advised for those with claustrophobia or physical limitations; ages 7 and up). - Tackle the Wild Cave Tour, a physically demanding journey through undeveloped sections for ages 13 and up. - Add a thrill above ground with the Saber Tooth Zip Ride.
No scheduled events listed right now, check the official site for current events.
Visit official websiteFamily-tested advice for a smoother day at Inner Space Cavern.
Arrive within the first hour of opening for the shortest queues and best photo light.
All ages for Adventure Tour (children under 3 are free, ages 4-12 are child rate). Hidden Passages Tour is not recommended for those with physical limitations or claustrophobia; children must be at least 7 years old. Wild Cave Tour is for ages 13 and up and is physically demanding.
Onsite or nearby parking available at 4200 S I-35 Frontage Rd.
Pack snacks, refillable water bottles and a portable charger to keep the day running smoothly.
Inner Space Cavern
4200 S I-35 Frontage Rd, Georgetown, TX 78626
This attraction has been claimed and verified.
Last updated 6/23/2026
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