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Inner Space Cavern tourist attraction in Georgetown, TX
Photo: Y. G.
View of Inner Space Cavern in Georgetown, TX
Photo: Sonne
View of Inner Space Cavern in Georgetown, TX
Photo: Ildar Gabdrakhmanov

Inner Space Cavern

4.7(6,836 reviews)$$Activity
🕑 1.5-2 hours (including tour time, check-in, and gift shop browsing)👶 Best for ages 5 and up. The cave tour involves walking on paved paths with some stairs and inclines, so children should be comfortable walking for extended periods. Kids interested in science, nature, and adventure will be especially captivated by the underground formations and the cave's fascinating discovery story.

About

Inner Space Cavern offers an unforgettable underground adventure just off I-35 in Georgetown. Kids will be mesmerized by the guided tour through ancient limestone formations, stalactites, and stalagmites, all while staying at a comfortable 72 degrees year-round. The tours are educational yet entertaining, making geology come alive for curious young minds.

Highlights

  • Descending by cable car into the cave entrance,a thrilling start to the adventure
  • The stunning 'Flowing Stone of Time' formation that kids can't believe is real
  • Learning how prehistoric animals once inhabited these caverns thousands of years ago
  • Spotting unique formations that look like animals, faces, or familiar objects,a fun game for kids during the tour
  • The knowledgeable guides who share fascinating stories and answer endless kid questions

Pro Tips

  1. 1.Bring a light jacket even in summer,the cave stays at 72°F year-round, which can feel chilly for kids after being in Texas heat
  2. 2.Wear closed-toe shoes with good grip; the cave paths can be slippery and sandals aren't permitted
  3. 3.Book your tour tickets online in advance, especially on weekends, as tour sizes are limited and they can sell out
  4. 4.Arrive 15-20 minutes early to check in, use restrooms, and browse the gift shop,there are no bathrooms inside the cave
  5. 5.Ask your tour guide about the 'Ivory Formation' and how workers accidentally discovered the cave while drilling for highway construction in 1963,kids love this story

Best Time to Visit

Weekday mornings (Monday-Thursday from 9:00-11:00 AM) offer smaller crowds and a more intimate tour experience. The cave's constant 72°F temperature makes it perfect for hot Texas summers when you need a cool escape, but it's equally enjoyable year-round.

What to Know

Tours last about 60-75 minutes and involve walking approximately 1 mile with stairs and inclines. Strollers cannot be accommodated in the cave. Check their website for current ticket prices, which typically offer family discounts.

Seasonal Notes

The cave is open year-round with consistent conditions inside. Summer is particularly popular as families seek relief from the heat. Holiday hours may vary, so check ahead during Thanksgiving and Christmas weeks. The cave occasionally closes for special events or maintenance, so confirm hours before visiting.

Nearby Eats

Monument Cafe (about 5 minutes away in downtown Georgetown) is a beloved local spot serving comfort food with a great kids menu. For quick bites, the nearby Georgetown shopping area along I-35 has family-friendly chains like Chick-fil-A and Whataburger.

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