2 Hours • Ages 10+
Pair cool subterranean passages with a backward, 630-foot zipline for a two-hour rush at Inner Space Cavern. Perfect for mixed groups—cave lovers and thrill-seekers get their fix in one accessible stop near Georgetown.
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Difficulty
moderate
Duration
2 Hours
Fitness Level
Moderate — must be able to climb stairs, sit upright, and meet height/weight limits.
Wildlife
History
Inner Space Cavern was discovered during highway construction in the 1960s and later opened for public tours, revealing extensive limestone formations and fossils.
Conservation
Stay on marked walkways, avoid touching formations, and leave no trace—cave minerals and microclimates are fragile and easily damaged.
Inner Space Cavern
2 Hours • Ages 10+
Inner Space Cavern in Georgetown, Texas, operates a collection of underground and surface experiences that showcase cave formations, fossils, hands-on activities, and an aerial zip attraction.
The site offers a range of guided and adventurous trips suitable for visitors seeking education, exploration, or adrenaline. Tours include the Hidden Passages Tour, where guests navigate secret cave passages with a flashlight, observe delicate formations, and follow rugged, untouched trails led by a guide; the Adventure Tour, which covers about a mile of cave passages and features Ice Age fossils narrated by guides; and the Wild Cave Tour, an authentic caving experience that requires crawling, climbing, and squeezing through tight passages to reach large chambers and rock formations.
For outdoor thrills, Inner Space Cavern operates the Saber Tooth Zip Ride, which lifts riders 130 feet into the sky and sends them racing backward 630 feet at speeds up to 33 mph in a tandem configuration. The Ice Age Tour description provided also references the Saber Tooth Zip Ride. Family-friendly activities include Gemstone Panning, where guests search for gemstones and fossils using small bags or larger buckets and use an ID card to learn about their finds.
All experiences list specific requirements where applicable, such as closed-toed shoes for certain tours. Inner Space Cavern emphasizes guided interpretation, hands-on discovery, and a variety of trip formats to meet different comfort and adventure levels. Staffed guides follow established safety practices and interpretive programs to ensure educational value and responsible cave stewardship for visitors of all ages.
Location
Georgetown, TX
Located in Georgetown, Texas.
Tours Offered
6 Experiences
Cave, zip, and panning options.
Saber Tooth Zip
130 ft / 630 ft / 33 mph
Tandem backward zip at speed.
Guided Tours
Multiple guided trips
Guides lead most cave experiences.
Check availability and schedules for cave tours, the Saber Tooth Zip Ride, and gemstone panning in Georgetown, TX.
Meet at the listed address
Arrive at 4200 S. I-35 Frontage Rd. Georgetown, TX early for check-in and safety briefings.
Wear closed-toe shoes
The cave floors and zipline platform require secure footwear—flip-flops are not permitted on the ride.
Secure loose items
No loose items allowed on the zip; use the provided storage locker for phones, keys, and cameras.
Watch weather forecasts
The Saber Tooth closes for lightning and winds over 33 mph—reschedule if storms are predicted.
Closed-toe shoes
Provides traction and is required for both cave walking and the zipline platform.
Photo ID
Needed for check-in and to confirm age/identity for ride restrictions.
Layered clothing
The cave stays cool year-round; a light layer keeps you comfortable during the tour.
fall
Sunscreen
Useful for time spent outside on the zipline platform and parking areas.
summer