1. Inner Space Cavern
Inner Space Cavern is a unique karst cave beneath I-35 in Georgetown, Texas. Formed by water passing through Edwards limestone, this cavern is estimated to be 20-25 million years old but opened to the surface only 14,000–45,000 years ago.
Explore three tour levels suitable for all ages and adventure levels. From standard tours to exploring undeveloped sections, it's a fun family experience. Uncover the secrets of these hidden caves in Georgetown Texas.
- Address: 4200 S I-35 Frontage Rd