As many as 12 million Mexican free-tailed bats burst out of Frio Cave each evening from March to September.

After ground instruction, certified instructors take students up to 2,500 feet, from which they soar for up to 20 minutes

A USA Archery–certified bowmen bring ranges and equipment to teach private lessons at the client's choice of location

After 30-minute ground briefing, skydivers ascend to at least 10,000 ft. & jump while strapped to pros, reaching speeds of up to 120 mph

Seasoned pilot straps thrill seekers into passenger seat of bright-red biplane for half hour of loops, rolls & hammerheads

Working longhorn ranch challenges visitors to ascend five-story log towers, speed across ziplines & kayak down Guadalupe River

During trips down the Guadalupe River, courses with 2:1 student-to-instructor ratios cover fly selection, casting & equipment nuances.

Tubes & coolers float down Comal River before air-conditioned shuttle takes groups on unlimited trips back to launch point

300+ members mingle during dozens of monthly activities, such as hikes, wine tastings & sports games & receive discounts at local businesses

Waterfall & rock formations fill 64-degree cave where tourists observe geological history & encounter reptiles & other animals