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Just 24 miles North of Austin,
Texas a natural cavern formed millions of years ago lies beneath one
of Texas' busiest interstate highways.
Inner Space Cavern is filled with history,
mystery and
chemistry!
It's a living cave with spectacular displays of stalactites, helectites,
soda straws, cave drapery and much
more.
More than 80,000 years in the making,
Texas' newest and most-accessible
cavern features spectacular rock
formations and an unmistakable air of
mystery. What kind of organisms began
life in these caves? How did Mother
Earth keep her underground secrets for
so long? |
Hours:
Open 7 Days A Week
Summer Hours: 9am -
6 p.m.
Off Season Hours:
9am - 4pm Weekday
10am - 5pm Weekends
Closed:
Thanksgiving,
Christmas
Eve, and
Christmas
Day
Prices:
Adults: $17.95
Children (ages 4 to 12): $9.95
Children 3 and under: Free |
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From the moment you descend into the Cavern via
our unique cable car system, you realize that the journey to find these
answers will be just as important as the answers themselves. At a
comfortable year-round
temperature of 72 degrees, a paved walk way leads you through
fascinating rooms filled with incredible rock formations. Stalactites
and stalagmites surround you from every angle and formations such as the
"Flowing Stone of Time" and the "Lake of the Moon" bring to life the
pages of every history book you've ever read about the early days of our
Earth. It is an experience you will not forget. |
 How
was Inner Space Cavern Discovered?
In the spring of 1963, a Texas Highway Department core drilling team
was taking 6-inch core samples to determine if the ground was stable
enough to support a large highway overpass (I-35) 24 miles north of
downtown Austin. As they drilled one of the test holes, the drill
bit suddenly dropped 26 feet and the crew knew something more was
underneath their feet besides Texas rock. Several other test drills
were performed in the area, and the large cavity was still found
underneath. The crew supervisor decided to enlarge one of the holes
to 24 inches and after drilling through 40 feet of solid limestone,
finally broke into what is now Inner Space Cavern. One daring
workman was lowered into the hole by standing on the drill bit and
holding tightly to the stem--and became the first human being to
enter Inner Space Cavern. Don't miss out your opportunity to
be next! |
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| Directions: Inner
Space Cavern is located 24 miles North of Austin. It's
entrance is on IH-35. Simply follow IH-35 North past
Round Rock and take exit 259. Go past the Candle Factory, turn
left under IH-35 and we'll be on your right!
Return to
Austin City Guide or go
directly to our guide to
Austin Things to Do
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