Inner Space Cavern
4.7$$· ModerateClosed · opens 9:00 AMExplore prehistoric rock formations in a subterranean Texas adventure

Located just north of Austin in Georgetown, Inner Space Cavern offers guided tours through vast underground chambers filled with ancient stalactites, stalagmites, and prehistoric fossils. Discovered by a Texas Highway Department core drilling team in 1963, the cavern maintains a comfortable year-round temperature beneath the Texas heat. Visitors can choose from multiple tour options ranging from family-friendly paved walks to adventurous caving excursions.
History
Discovered in 1963 during the construction of Interstate 35, Inner Space Cavern has been preserved as a natural attraction that showcases the beauty of Texas geology. It is one of the best-preserved caves in the state.
Expert notes
- Book your tickets in advance, especially during peak seasons.
- Join a guided tour for the best experience.
- Bring a camera to capture the stunning formations, but check for photography rules.
Features
- Free Parking
- Gift Shop
- Guided Tours
- Restrooms
More things to do in Austin
Austin City HallFreeExplore modern civic architecture in the heart of downtown Austin.
Texas Science & Natural History MuseumFreeExplore prehistoric fossils and Texas biodiversity on the UT Austin campus
Austin Nature & Science CenterFreeDiscover native wildlife, interactive exhibits, and dinosaur tracks in Zilker Park.
Austin Chamber Music Center$Experience intimate classical music concerts and educational programs in Austin.
Austin History CenterFreeDiscover Austin's rich heritage through historic photographs, archives, and regional exhibits.
Austin Art Space GalleryFreeAn inviting community art space showcasing diverse local Austin talent.