Natural Bridge Caverns
$25–$50Descend 180 feet into Texas' largest show caverns, then hit ziplines and the ropes course up top.

Photo: Larry D. Moore, CC BY 4.0, via Wikimedia Commons. Cropped and resized.
Partly closed: as of late October 2026 all trails are closed and a burn ban is in force; the park also closes to the public for permitted hunts Nov. 20-24 and Jan. 11-15 (per tpwd.texas.gov, checked 2026-11-02).
Swim, tube and paddle along four miles of the cypress-lined Guadalupe River in the Texas Hill Country, then camp under live oaks.
3350 Park Road 31, Spring Branch, TX 78070 · Spring Branch, TX
Guadalupe River State Park covers about 1,939 acres in the Hill Country, a short drive from San Antonio and Austin, with four miles of Guadalupe River frontage. People come to swim, tube, canoe and fish, and away from the water there are 13 miles of trails, 85 water and electric campsites and nine walk-in tent sites. Guided hikes visit the neighboring Honey Creek State Natural Area. Entry is $7 per adult, and day passes can be reserved online, which helps on busy summer weekends.
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