San Antonio, TX
Race Details
Great Springs Trail Race – Natural Bridge Caverns

- 2026-09-26
Race Date
- Open
Registration Status
- San Antonio, TX
Location
Event Schedule
Here is the latest schedule of events:
| Name | Distance | Type | Price | Start Time |
|---|---|---|---|---|
| GSTR – Natural Bridge Caverns – LPS Run (Last Person Standing Run) | trail_race | $190.00 | 9/26/2026 07:00 | |
| GSTR – Natural Bridge Caverns – LPS Ruck (Last Person Standing Ruck) | trail_race | $180.00 | 9/26/2026 07:00 | |
| GSTR – Natural Bridge Caverns – 16mi | 16 Miles | trail_race | $130.00 | 9/26/2026 07:45 |
| GSTR – Natural Bridge Caverns – 8mi | 8 Miles | trail_race | $110.00 | 9/26/2026 07:45 |
| GSTR – Natural Bridge Caverns – 8mi Ruck | trail_race | $115.00 | 9/26/2026 07:45 | |
| GSTR – Natural Bridge Caverns – 4mi | 4 Miles | trail_race | $85.00 | 9/26/2026 07:45 |
| GSTR – Natural Bridge Caverns – Youth 1- Mile Trail Race (12 & under) | 1 Miles | trail_race | $20.00 | 9/26/2026 10:30 |
Great Springs Trail Race – Natural Bridge Caverns Race Details
The latest details from your Race Directors:
Saturday, September 26, 2026.
Join us for our most unique race ever! Starting in the Natural Bridge Caverns, which is part of the Comal Caverns network, this race kicks off with breathtaking views of the world below our feet as the start line is in the depths of the Natural Bridge Caverns. Once you emerge to the sunshine of a beautiful day, you’ll wind your way through beautiful trails over flowing hills and through wooded sections. You can choose from 4 to 16 miles distance or go big with the Last Person standing format.
Natural Bridge Caverns in San Antonio.
This race is made possible by the great work of Great Springs Project. Don’t know what that is yet? Check out this link or just come to the race and learn how the Edwards Aquifer under these trails is critical to sustainable clean water for our growing cities. We are incredibly proud to support their grandiose efforts, alongside the city of San Antonio via this trail race!
While every racer will get some cool swag, September 1 is the deadline to get a shirt.
Click Here for Tejas Trails Policies (you really do want to know this stuff)
