Inner Space Cavern

Inner Space Cavern is .5 mi. s. off I-35 exit 259 at 4200 S. I-35 Frontage Rd. The cave was discovered in 1963 during construction of I-35. Prehistoric relics also are displayed during the tours, which last at least an hour.

Comfortable walking shoes are recommended; closed-toe shoes are required for Hidden Passages Tour.

Guided tours are available.