Great Springs Trail Race - Natural Bridge Caverns

SEP
20
2025
Read all about the Great Springs Trail Race - Natural Bridge Caverns on 20 Sep 2025 in San Antonio.
Sat 20 Sep 2025
16 miles 8 miles 4 miles

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About the race

Great Springs Trail Race – Natural Bridge Caverns is a San Antonio, Texas trail-running event that begins inside the Natural Bridge Caverns (part of the Comal Caverns network). Participants choose from multiple distances and formats: 4-, 8-, and 16-mile courses; Last Person Standing races; an 8-mile Ruck; and a Youth 1-mile trail race for 12 and under. The course winds through rolling hills and wooded sections after surfacing into daylight, offering a dramatic atmosphere with views from below the earth.

The race supports the Great Springs Project and highlights the Edwards Aquifer’s role in sustainable water. Swag is provided, with a shirt deadline noted. Visit the organization's website for the most recent information.

16 mi
16mi
8 mi
8mi Ruck
8 mi
8mi
4 mi
4mi
Youth 1- Mile Trail Race (12 & Under)
Last Person Standing Ruck
Last Person Standing Run

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