Inner Space Cavern
Explore Texas's hidden gem, Inner Space Cavern, a 20-million-year-old wonder with stunning formations and prehistoric fossils.
Highlights
Must-see attractions
Social
From TikTok & Reddit
Best Time
Escape the heat
Inner Space Cavern
Best Time
Escape the heat
Highlights
Must-see attractions
Explore Texas's hidden gem, Inner Space Cavern, a 20-million-year-old wonder with stunning formations and prehistoric fossils.
"A truly unique and thrilling experience, definitely worth the ticket and the trip!"
👟 Wear Closed-Toe Shoes
The cave floor can be slippery. Closed-toe tennis shoes are highly recommended to prevent slips and for comfort. [^R]
🥶 It's Always 72°F!
The cavern maintains a cool, constant temperature year-round, making it a perfect escape from Texas heat.
Highlights
Discover the most iconic attractions and experiences
The Sounding Stones
Deep within the cavern
Discover a room filled with hundreds of stones that produce beautiful sounds, a truly magical and unique natural phenomenon.
Ice Age Fossils
Throughout the caverns
See ancient fossils of mammoths and saber-toothed cats, remnants of a time when Texas was a vastly different landscape.
Complete Darkness Experience
Designated area on tours
Experience true, profound darkness as guides turn off all lights, offering a peaceful and awe-inspiring sensory adventure. [^R]
Stunning Cave Formations
Various chambers
Marvel at intricate stalactites, stalagmites, and other unique geological formations sculpted over millions of years. [^R]
Plans like a pro.
Thinks like you
Planning Your Visit
Beat the Texas Heat Underground
Choose Your Adventure Level
Best Times
Insider Tips
from TikTok, Instagram & Reddit
👟 Wear Closed-Toe Shoes
The cave floor can be slippery. Closed-toe tennis shoes are highly recommended to prevent slips and for comfort. [^R]
🥶 It's Always 72°F!
The cavern maintains a cool, constant temperature year-round, making it a perfect escape from Texas heat.
📸 Photo Ops Available
A professional photo opportunity is offered at the beginning of the tour, available for purchase later. [^R]
🎒 No Strollers or Wheelchairs
The cave paths are not accessible for strollers or wheelchairs; be prepared to carry young children. [^R]
Tips
from all over the internet
👟 Wear Closed-Toe Shoes
The cave floor can be slippery. Closed-toe tennis shoes are highly recommended to prevent slips and for comfort. [^R]
🥶 It's Always 72°F!
The cavern maintains a cool, constant temperature year-round, making it a perfect escape from Texas heat.
📸 Photo Ops Available
A professional photo opportunity is offered at the beginning of the tour, available for purchase later. [^R]
🎒 No Strollers or Wheelchairs
The cave paths are not accessible for strollers or wheelchairs; be prepared to carry young children. [^R]
⏳ Book Tours in Advance
Especially during peak season, booking your tickets and preferred tour time online is advised.
What Travellers Say
Reviews Summary
Visitors consistently praise Inner Space Cavern for its stunning natural beauty, knowledgeable guides, and the unique experience of complete darkness. The constant cool temperature makes it a welcome respite from the Texas heat, and the historical insights, including Ice Age fossils, add an educational layer. While the uphill return can be challenging for some, and certain tours involve tight spaces, the overall consensus is that it's a highly recommended and memorable adventure for all ages.
"Title: A Truly Unique and Thrilling Experience!
I recently visited Inner Space Cavern and had an absolutely amazing time! From start to finish, the tour was well organized and the guides were incredibly knowledgeable, sharing fascinating details about the history, geology, and formation of the cave.
One of the most memorable moments was when the guide turned off all the lights deep inside the cave. It’s hard to describe the feeling of being in complete darkness—absolutely pitch black, with zero light and only the sounds of the cave around you. It was both peaceful and awe-inspiring, giving a sense of how early explorers must have felt venturing into these hidden spaces for the first time.
The cave itself is stunning—beautiful stalactites, stalagmites, and unique formations everywhere you look. The temperature inside is comfortably cool, so it’s a great escape from the Texas heat.
Highly recommend this experience for families, adventure seekers, or anyone curious about nature’s underground wonders. If you haven’t been, put this on your list!"
Vijay devara
"Honestly this is one of the more memorable things we did on our trip to Austin (technically Georgetown). Definitely worth the ticket and the trip if you’re nearby.
There are 3 packages that you can choose from. Since we were new, we chose the basic package (if you want a little more physical activity and adventure you can choose the others but I think most other people in this review section did the basic package. Don’t worry—the basic package is entertaining and worth your money.) Our guide was very knowledgeable and talked about the cave’s history, geology, and everything in between. It is damp and wet inside the cave so they do recommend closed toe tennis shoes so you don’t accidentally slip but there are strategically placed carpets and handrails in various inclines and declines. There is a photo opportunity at the very beginning of the tour that’s available for purchase and pick up later on at the gift shop for I believe $16. You do walk about 1 mile round trip and the biggest hurdle is coming back from the tour and tackling that huge incline that was previously your decline. The tour is very organized and the sights are beautiful.
There is a gift shop, small concession stand like food booth, and a mini zip line outside that’s $10 regular price. It’s scarier going backwards in the ride and it’s not your typical zip line where you go individually, it’s more like an amusement theme park ride where you go 30 mph backwards and forwards on this 2 seater."
Jade M.
"Nice and clean. The staff were knowledgeable of the caverns.
A great tour of the caverns (about 1 hour long for the basic package). The staff didn’t miss a beat at each stop along the route. They made it interesting enough for all ages.
It can get muggy in the cavern and the uphill back up can be daunting but not impossible.
FYI. Going uphill out of cave can be difficult. They got different tours for the more adventurous."
Josue Diaz
What People Like
What People Dislike
Frequently Asked Questions
🚇 🗺️ Getting There
Inner Space Cavern is conveniently located just off I-35 in Georgetown, Texas. It's easily accessible by car, with ample parking available on-site. Many visitors find it a straightforward drive from Austin and surrounding areas.
Yes, Inner Space Cavern is located in Georgetown, TX, which is part of the greater Austin metropolitan area. It's about a 30-40 minute drive north of downtown Austin, making it a popular day trip destination.
Inner Space Cavern offers free on-site parking for visitors. The lot is generally spacious enough to accommodate most visitors, especially during off-peak times. [^R]
Public transportation options to Inner Space Cavern are limited. It is primarily accessible by private vehicle. If relying on ride-sharing services, ensure they can accommodate the return trip. [^R]
Yes, Inner Space Cavern is very easy to find as it's located directly off the I-35 frontage road in Georgetown, TX. Look for the prominent signage.
🎫 🎫 Tickets & Entry
Ticket prices vary depending on the tour chosen. The Basic Adventure Tour typically ranges from $20-$30 for adults and slightly less for children. It's best to check their official website for the most current pricing and any available discounts. [^R]
While direct coupon codes might be rare, look for potential deals on sites like Groupon or check for seasonal promotions. Sometimes local publications or hotel concierges might have information on discounts. [^R]
The standard Adventure Tour lasts approximately 60-90 minutes, covering about a mile of the cavern. Other tours may have different durations. [^R]
It is highly recommended to book your tickets and tour time in advance, especially during weekends, holidays, and summer months, to guarantee your spot and avoid disappointment.
Children 3 and under are typically free for the Basic Adventure Tour. There isn't a strict age limit for most tours, but younger children may need to be carried. The Wild Cave tour has age restrictions. [^R]
🎫 🧭 Onsite Experience
The temperature inside Inner Space Cavern is a constant 72°F (22°C) year-round. It provides a welcome cool escape from the Texas heat.
While the Basic Adventure Tour has some areas where you might need to duck, most of the main rooms are quite large. However, if you are severely claustrophobic, it's best to be cautious or inquire about specific tour routes. [^R]
Comfortable, closed-toe shoes are essential due to potentially slippery surfaces. Light clothing is recommended as the cave is a cool 72°F. [^R]
Photography is generally allowed on the standard tours, but flash photography might be restricted in certain areas to protect the formations. Check with your guide. [^R]
Restrooms are available at the visitor center before and after your tour, but not typically inside the cavern itself. [^R]
🍽️ 🍽️ Food & Dining
Yes, there is a small concession stand at Inner Space Cavern offering snacks and drinks. For full meals, you'll find more options in the nearby town of Georgetown. [^R]
Outside food and drinks are generally not permitted inside the cavern itself, but you can usually consume them in designated areas at the visitor center or picnic areas. [^R]
The concession stand typically offers typical grab-and-go items like chips, candy, sodas, and perhaps some hot dogs or pretzels. [^R]
Georgetown, TX, has a charming historic square with numerous restaurants offering a variety of cuisines, from casual cafes to more upscale dining.
📸 📸 Photography
Every chamber offers unique photo opportunities, from the massive stalactites and stalagmites to the 'sounding stones' and the experience of total darkness. Ask your guide for the best angles. [^R]
Flash photography is often discouraged or prohibited inside the cavern to protect the delicate formations and the natural environment. Always check with your guide. [^R]
While personal cameras are fine, tripods and professional photography equipment may require special permission or may not be allowed on standard tours. It's best to inquire in advance. [^R]
Yes, Inner Space Cavern offers a professional photo opportunity at the beginning of the tour, with prints available for purchase at the gift shop. [^R]
The cavern is illuminated with strategically placed lighting to highlight the formations. The 'total darkness' experience is a unique photographic challenge, often best captured with long exposures if permitted. [^R]
For Different Travelers
Tailored advice for your travel style
👨👩👧 Families with Kids
For the more adventurous families, consider the Adventure Tour which offers a bit more physical activity. The staff are known for being patient and kind with children, making the experience enjoyable for everyone. [^R]
💑 Couples & Date Ideas
The experience of complete darkness together can be a surprisingly intimate and memorable moment. [^R] Afterwards, explore the charming historic square in Georgetown for dinner or drinks, making for a perfect day trip. 💰 Budget Travelers
Deep Dives
In-depth insights and expert knowledge
Exploring the Tours: From Gentle Walks to Wild Adventures
For those seeking a more rugged experience, the Wild Cave Tour offers a chance to explore undeveloped sections of the cavern. This tour involves crawling, climbing, and navigating through tight spaces, providing a true spelunking adventure. It's recommended for those who are comfortable with physical challenges and enclosed environments. [^R]
There are also other specialized tours, like the Geologist Tour, which delves deeper into the scientific aspects of the cavern's formation and history. It's always wise to check the official Inner Space Cavern website for the most up-to-date information on tour availability, duration, and suitability for different age groups and physical abilities.
The Discovery and History of Inner Space Cavern
The cavern itself is estimated to be between 20 to 25 million years old, formed by water slowly eroding the Edwards limestone over millennia. For thousands of years, this natural wonder remained hidden, preserving its ancient formations and the remains of prehistoric life. Evidence of Ice Age animals, such as mammoths and saber-toothed cats, has been found within its depths, offering a glimpse into Texas's ancient past.
The cavern was officially opened to the public in 1966, allowing visitors to explore its geological marvels and learn about its rich history. [^R]Beyond the Cavern: Activities and Amenities
The visitor center includes a gift shop where you can purchase souvenirs, educational materials, and items related to the cavern. There's also a small concession stand offering snacks and drinks, perfect for a quick bite before or after your tour. [^R] For those looking to extend their visit, the nearby town of Georgetown boasts a charming historic square with a variety of restaurants and shops, offering a pleasant way to spend more time in the area.
Social
from TikTok, Instagram & Reddit