Old Tunnel State Park

This once-functioning railroad tunnel is the seasonal home for up to 3 million Mexican-tailed bats. Bat viewing nightly May through October. Other activities at this day-use park include birding, nature walks and stargazing.

Open year-round from sunrise-sunset for general use.

10619 Old San Antonio Road.

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Old Tunnel State Park

Open year-round from sunrise-sunset for general use.
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10619 Old San Antonio Road,
Fredericksburg, TX
Phone: 866/978-2287