Almost everyone who has lived in Fredericksburg through a full summer carries the same mental postcard of Old Tunnel State Park: load the truck sometime in June or July, drive the twenty minutes out Old San Antonio Road, watch the bats spiral out of that old railroad tunnel, then finish the night with a burger at Alamo Springs Café. That postcard is wrong on two counts, and both corrections matter if you're planning to go before the season ends.
The show is actually better now, in the closing weeks, than it was back in early summer. And the burger stop that goes with it spent half of 2024 shut down before a new set of local owners took over the grill.
Why Late September Beats the Fourth of July
Bats have lived in that abandoned railroad tunnel since the early 1940s, when the line between Fredericksburg and San Antonio stopped running trains and left an 11-mile-per-hour trip's worth of cool, dark limestone tunnel sitting empty. Texas Parks and Wildlife Department took it over in 1991 to protect the colony and made it an official state park in 2012, at just over 16 acres the smallest in the state system. Every year from May 1 through October 31, an estimated 3 million Mexican free-tailed bats and a few thousand cave myotis roost there during the day and pour out at dusk to hunt.
The part most people get backwards is when to go. June and July feel like the obvious peak because that's when summer travel plans get made, but Texas Parks and Wildlife's own park page is specific that the best viewing window is August and September, not the early summer months. The reason is timing, not population size. As days shorten heading into fall, the bats start emerging earlier relative to sunset, which means you get the spiral against a lighter sky instead of near-total dark. It's also when the colony is at its fullest, since mother bats return from separate maternity sites with their pups in early August and the numbers build from there through September.
That puts the calendar in an odd spot right now. If you've been telling yourself all summer that you'll get out to Old Tunnel eventually, you haven't missed the best window. You're standing in it. The season closes for the year on October 31, which leaves roughly five or six weekends before the bats head south to Mexico for winter and the tunnel goes quiet until next May.
The two viewing areas work differently enough that it's worth deciding which one you want before you book:
| Upper Viewing Area | Lower Viewing Area | |
|---|---|---|
| Nights open | Every night, May through October | Thursday through Sunday only |
| Distance from tunnel | Farther, wider Hill Country view | Close enough to feel the wind from their wings |
| Typical fee | Around $2 per person | Around $5 per person, regardless of age |
| Kids | No age restriction | Not recommended for children under 4 |
Pricing has held in that range across recent seasons, but state park fees can shift, so confirm the current amount when you book rather than assuming last year's number.
Either way, you're buying a ticket in advance. The park does not sell tickets on-site, tickets open 60 days out, and weekend dates in peak season have a habit of selling out two to three weeks ahead. If a Saturday in early October sounds appealing right now, that same instinct is occurring to a lot of other households in the Hill Country at the same time.
The Burger Stop Isn't the Same Place It Was
For close to two decades, the second half of an Old Tunnel trip had an obvious answer: Alamo Springs Café, the burger joint a short drive from the park entrance that built a genuine reputation, including a spot among Texas Monthly's best burgers in the state. Locals sent visiting family there. Visiting family told other visiting family. It became so tied to the bat-viewing routine that half the online advice about Old Tunnel mentions it in the same sentence as the tunnel itself.
In July 2024, the café closed. Not for a slow season or a kitchen remodel. The owner explained in a public statement that the business had survived COVID but couldn't secure financing to make a final payment owed to the previous owners, and the closure was permanent. For a stretch of nearly six months, anyone repeating the old advice to "grab a burger at Alamo Springs" was sending people to a building with the lights off.
It came back. On December 26, 2024, the café reopened under new ownership: Fredericksburg native Selena Flores and her husband Antonio Herrera took over from the founding owners and brought back the original recipes and suppliers that had made the burgers famous in the first place, according to Visit Fredericksburg's business directory. It's a different chapter under different hands, built on purpose to preserve what worked before rather than start over from scratch.
That gap matters for anyone getting their information from an article, a blog post, or a printed guide written before December 2024. A recommendation that predates the closure is describing a place that, for a good chunk of last year, didn't exist. A lot of that content is still sitting online with no update, which is exactly how a genuinely useful tip turns into bad advice nobody bothers to correct.
Planning the Next Six Weekends
None of this changes what makes the trip worth taking. Watching three million bats lift out of a century-old tunnel in a counterclockwise spiral, sometimes with a red-tailed hawk picking off stragglers on the way up, is still one of the more specific things you can do within a twenty-minute drive of downtown Fredericksburg. What changes is how you plan around it.
A few things worth building into that plan:
- Book now if a specific weekend matters to you. Peak-season lower deck tickets can sell out two to three weeks out, and you're inside that window for most of October already.
- Bring your own water. The park doesn't sell food, drinks, or anything else on-site, and there's no water available once you're there.
- Plan to arrive close to an hour before sunset, since the emergence typically starts 30 to 45 minutes ahead of it and seating fills up.
- Check the park's Facebook page or call the bat information line before you drive out, since emergence times shift by a few minutes night to night and the park posts current estimates there rather than on a fixed schedule.
- If dinner at Alamo Springs Café is part of the plan, know you're eating at the version that reopened in December 2024, not the one that closed that July. Same building, same reputation to live up to, new hands doing the cooking.
The version of this trip that most people carry around in their head, summer timing and an old restaurant recommendation, was accurate once. It just hasn't been updated to match what's actually true right now, in the last stretch of a season that's better than the one everybody assumes they missed.
That kind of gap between what people assume about Fredericksburg and what's actually current here is the whole reason Krista Duderstadt pays this close attention to the town, not just the market. If you're new to the Hill Country and want more of the small, specific details that make living here different from visiting here, or you're ready to talk about buying or selling a home in Fredericksburg, reach out anytime.
