About This Race
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)
Course & Race Day Details
Help Build San Antonio's RaceMob Community
Your contributions help thousands of runners. Add what you know!
Write First Review
Share your experience
Add Runner Tips
Course strategy & advice
Share Discounts
Help runners save money
Create a Team
Coordinate your crew
Be the First! No content yet for this race.
Add photos, reviews, or tips to help other runners.
Race Photos
No Photos Yet
Be the first to share photos from this race!