Watch millions of bats emerge from an abandoned railroad tunnel at this unique state park, offering a spectacular natural display from May through October.
Old Tunnel State Park is home to up to three million Mexican free-tailed bats and 3,000 cave myotis bats from May through October. The park centers around an abandoned railroad tunnel that provides a seasonal home for these flying mammals. Visitors can explore a short nature trail during the day, reading signs about bat lore and railroad history, before settling in for the spectacular nightly emergence.
Yes, you must purchase a bat-viewing ticket in advance to stay in the park after 5 p.m. from May 1 through October 31. Tickets are not sold on-site.
No, pets are not allowed in the park to protect the bats and their habitat.
Children under four years old are not permitted in the lower viewing area due to the bats' sensitivity to noise disturbance. They are welcome in the upper viewing area.