Not too far from our town lies a time capsule that remained hidden for over 10,000 years. That is, until the Texas Highway Department stumbled upon it in 1963.
In the nearly 60 years since opening to the public, Inner Space Cavern has been touted as one of Texas’s best-preserved caves. Families, schools, and adventurers alike are welcome to explore an underground world filled with stunning rock formations, massive chambers, and prehistoric animal bones. The cave maintains a 72-degree temperature throughout the year and stays dry even during the rainiest days, making it the perfect outing in any season.
For the classic experience, sign up for the Adventure Tour. This one-hour guided walk along paved, well-lit paths takes visitors through the cavern’s largest and most decorated rooms. Along the way, you get to hear about the cave’s discovery and ancient history.
If you are craving a more rugged experience, the Wild Cave Tour and Hidden Passages Tour offer a deeper dive underground. The Wild Cave Tour is a physically demanding three- to four-hour adventure through narrow crawlspaces and twisting passages. Guests are provided with helmets, headlamps, and gloves. The Hidden Passages Tour, while less intense, explores a recently opened section of the cave along an undeveloped trail.
Earlier this summer, Inner Space Cavern also hosted its special Ice Age Adventure Tour—a rare opportunity to learn about saber-tooth cats and mammoths alongside a real paleontologist. Led by John A. Moretti, a PhD candidate from UT Austin, the tour offered fascinating insights into the cave’s past and ongoing research shaping our understanding of the region’s natural history.
But it doesn’t stop underground. You can pan for semi-precious gemstones and fossils in the outdoor mining sluice, take on the tandem zip ride called The Saber Tooth, and finish the day with made-in-house candied nuts and fudge. There’s no shortage of family fun!
Book tours at innerspacecavern.com or 4200 S I-35 Frontage Rd, Georgetown.