Inner Space Cavern

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