Great Springs Trail Race - Natural Bridge Caverns

SEP

26

2026

This trail race begins in the depths of Natural Bridge Caverns before emerging onto scenic hillside trails. Runners can choose from several distances, including a Last Person Standing format and a youth race. The event supports the Great Springs Project's work for clean water.

Sat 26 Sep 2026

San Antonio, Texas

Website Registration

16 miles 8 miles 4 miles

Always double-check with the organizer's website! This page may contain affiliate links.

Great Springs Trail Race - Natural Bridge Caverns

The event takes place on Saturday, September 26, 2026, at Natural Bridge Caverns in San Antonio, Texas. The start line is located within the Natural Bridge Caverns, which is part of the Comal Caverns network. After exiting the caverns, the course follows trails over hills and through wooded sections.

The event offers several distance options and formats:

GSTR - Natural Bridge Caverns - LPS Run (Last Person Standing Run)
GSTR - Natural Bridge Caverns - LPS Ruck (Last Person Standing Ruck)
GSTR - Natural Bridge Caverns - 16mi
GSTR - Natural Bridge Caverns - 8mi
GSTR - Natural Bridge Caverns - 8mi Ruck
GSTR - Natural Bridge Caverns - 4mi
GSTR - Natural Bridge Caverns - Youth 1-Mile Trail Race (12 & under)

The race is associated with the Great Springs Project, which focuses on the importance of the Edwards Aquifer beneath the trails for sustainable clean water. The address for the event is 26495 Natural Bridge Caverns Rd., San Antonio, TX 78266. Visit the organization's website for the most recent information.

16 mi

Gstr - Natural Bridge Caverns - 16mi

8 mi

Gstr - Natural Bridge Caverns - 8mi

8 mi

Gstr - Natural Bridge Caverns - 8mi Ruck

4 mi

Gstr - Natural Bridge Caverns - 4mi

Gstr - Natural Bridge Caverns - Youth 1- Mile Trail Race (12 & Under)

Gstr - Natural Bridge Caverns - Lps Run (last Person Standing Run)

Gstr - Natural Bridge Caverns - Lps Ruck (last Person Standing Ruck)