Is Inner Space Cavern worth visiting?

Inner Space Cavern, discovered by a highway drilling team, is considered one of Texas's best-preserved caves, open to the public since 1966. It offers a unique glimpse into an ancient underground world with beautiful formations, large rooms, and prehistoric animal bones, all in a constant 72-degree environment.

What are the best things to see and do at Inner Space Cavern?

Visitors can explore stunning natural formations and vast chambers, and see evidence of prehistoric animal life through various tour options. These include the classic Adventure Tour, the more intimate Hidden Passages Tour, or the physically demanding Wild Cave Tour. Guests can also experience the Saber Tooth Zip Ride.

How much do tickets to Inner Space Cavern cost?

Ticket prices for Inner Space Cavern start from $27.95. Please check the official site for current pricing and tour-specific costs.

What are the opening hours at Inner Space Cavern?

Inner Space Cavern is open daily from 9 AM to 5 PM. It is closed on Thanksgiving, Christmas Eve, Christmas Day, and Easter Day. Please check their official site for date-specific hours.

Is Inner Space Cavern suitable for young children, and what ages is it best for?

The Adventure Tour is suitable for all ages, with children under 3 free and ages 4-12 at a child rate. The Hidden Passages Tour is recommended for ages 7 and up, and the Wild Cave Tour is for ages 13 and up due to its physical demands.

Inner Space Cavern

Write a Review Georgetown, Texas 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. Verified•Nature & Outdoor

Published October 2026. Editorial oversight by James Morgan. AI-assisted, human-edited. Our editorial standards

Image credits

Photo by Another Believer via Wikimedia Commons, CC-BY-SA-4.0
Photo by Larry D. Moore via Wikimedia Commons, CC-BY-4.0

Visit Website

About Inner Space Cavern

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.

Attraction Details

Opening Times

Monday9 AM to 5 PM
Tuesday9 AM to 5 PM
Wednesday9 AM to 5 PM
Thursday9 AM to 5 PM
Friday9 AM to 5 PM
Saturday9 AM to 5 PM
Sunday9 AM to 5 PM

Events at Inner Space Cavern

No scheduled events listed right now, check the official site for current events.

Visit official website

Plan Your Visit

Family-tested advice for a smoother day at Inner Space Cavern.

Who it's for

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.

Getting there

Inner Space Cavern is at 4200 S I-35 Frontage Rd, Georgetown, TX 78626. Check the operator's site for parking and transit options.

Pro tip

Pack snacks, refillable water bottles and a portable charger to keep the day running smoothly.

Directions

Inner Space Cavern

4200 S I-35 Frontage Rd, Georgetown, TX 78626

Get Directions Visit Website

This attraction has been claimed and verified.

Last updated 10/17/2026