The visitor center in Old Tunnel State Park is open year-round from sunrise to 5 p.m. During bat season (May 1 through October 31), visitors must purchase bat-viewing tickets in advance to stay in the park after 5 p.m.
Entrance fees are typically around $5 per vehicle. Parking is available on-site, but spaces may fill quickly during peak times.
From Austin, take US-183 N for approximately 60 miles, then merge onto TX-29 W. Continue for 15 miles before turning onto Park Road 4, leading you directly to your destination. Enjoy the scenic drive through the Texas Hill Country, where vibrant landscapes await.
Old Tunnel State Park offers designated RV and motorcycle parking areas, accessible parking spots for visitors with disabilities, and bike racks for cyclists, ensuring convenient access for all.
Accessibility & permits
Emergency
- Cell service availability:Full
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Discover hidden trails and breathtaking views in this enchanting natural escape.
Old Tunnel State Park in Texas offers an enchanting escape into the heart of nature, where history and wildlife converge in a breathtaking landscape. This hidden gem, located just outside Fredericksburg, invites visitors to explore its unique limestone tunnel, once a railway passage, now a sanctuary for thousands of bats. As dusk falls, the sky transforms into a dramatic spectacle as the bats emerge, creating a mesmerizing display that captivates onlookers.
The park’s trails meander through vibrant wildflowers and towering trees, providing a serene backdrop for hiking and birdwatching. Each step reveals the diverse flora and fauna that call this area home, inviting nature enthusiasts to immerse themselves in the tranquility of the Texas Hill Country. The well-maintained paths cater to both casual walkers and seasoned hikers, ensuring everyone can experience the park’s natural beauty.
Old Tunnel State Park also features picnic areas perfect for a leisurely afternoon, allowing visitors to savor the sounds of nature while enjoying a gourmet lunch. Whether you seek adventure or relaxation, this park promises a unique experience that leaves a lasting impression.
Top 3 Facts about Old Tunnel State Park
During the spring, thousands of Mexican free-tailed bats emerge from an abandoned railway tunnel, creating a stunning spectacle as they migrate, while nearby, rare species like the endangered golden-cheeked warbler thrive, showcasing the unique biodiversity and unusual animal sightings in this remarkable ecosystem.
This park is known for its unique microclimate, where the convergence of different air masses creates sudden temperature shifts, leading to unexpected weather patterns; visitors may experience warm, sunny conditions in one area while encountering chilly, misty conditions just a short distance away.
Home to the first bat colony in Texas, this unique destination features the bizarrely named “Bat Cave Trail,” while unusual rules prohibit climbing trees and feeding wildlife, ensuring a safe environment for both visitors and the diverse ecosystem thriving within the park’s boundaries.
Family programs
- Junior Ranger
- Ranger-led Tours
- Self-guided Tours
- Workshops & Hands-on Activities
- Living History & Cultural Demos
- Scavenger Hunts
- Night Sky & Astronomy
- Family Camping & Overnight
- Volunteer & Stewardship
- Youth Conservation
- Scouting Partnerships
- Virtual Junior Activities
- Arts & Crafts
- Water-based Adventures
Travel Tips
Plan Ahead
When visiting this scenic destination, planning ahead is key to maximizing your experience. Check trail conditions, pack plenty of water, and arrive early to enjoy the stunning views and wildlife before the crowds arrive. Don’t forget to bring a camera to capture the picturesque landscapes and unique geological features that make this spot a must-see.
Pack Appropriately
When preparing for your trip, pack layers to handle the unpredictable Texas weather, especially in spring and fall. Early mornings and evenings can be cool, while afternoons may heat up quickly; a light jacket and breathable clothing will keep you comfortable as you explore the stunning landscapes and wildlife.
Respect Wildlife
When exploring this natural haven, prioritize respecting the diverse wildlife that calls it home. Keep a safe distance from animals, avoid feeding them, and stay on designated trails to minimize your impact. Observing creatures like bats and birds in their natural habitat enhances your experience while ensuring their safety and well-being. Remember, a little respect goes a long way in preserving the beauty of nature.
Stay Informed
Before your visit, stay informed by checking the weather, current temperatures, and any fire bans or notices. Know emergency contact information and ensure someone knows your itinerary, including where you’re going and your expected return time. Being prepared enhances your safety and enjoyment while exploring the area.
Seasons
In spring, the park’s nature trails offer serene hikes through blooming wildflowers and budding trees, providing a peaceful retreat into the heart of Texas Hill Country.
Experience the mesmerizing nightly emergence of millions of Mexican free-tailed bats from May through October, with June, July, and August offering peak viewing opportunities.
As autumn paints the Texas Hill Country in vibrant hues, the crisp September air invites visitors to hike the scenic trails, while October and November offer a serene retreat amidst the changing foliage.
Experience the serene beauty of the Texas Hill Country in winter, where crisp air and tranquil trails offer a peaceful retreat from the bustling summer crowds.
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Where to stay
Frequently Asked Questions
Ready to dive into what Old Tunnel State Park has to offer? Let’s tackle some of the burning questions you might have as you plan your visit!
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The best time to visit Old Tunnel State Park is during the spring and fall months, specifically from late March to early November, when the weather is mild and the bat activity is at its peak.
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To view the bats at Old Tunnel State Park, visit during the evening around sunset, particularly from May to October, when the Mexican free-tailed bats emerge from the tunnel for their nightly feeding.
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Yes, pets are allowed in Old Tunnel State Park, but they must be kept on a leash and cleaned up after. Be mindful that pets are not permitted in certain areas, such as the bat viewing area.
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There is no entrance fee for Old Tunnel State Park, making it an affordable option for families and nature enthusiasts.
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Activities available at Old Tunnel State Park include hiking on trails, bird watching, picnicking, and of course, the unique experience of bat watching during the summer months.