Race Discovery
Great Springs Trail Race - Natural Bridge Caverns
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2025 - Great Springs Trail Race - Natural Bridge Caverns

San Antonio, Texas, United States View on map
Sep 20, 2025 (America/Chicago local time)
Trail running

2025 distances

Trail running

GSTR - Natural Bridge Caverns - 16mi

Sep 20, 2025 25.7K 7:45 AM
$115.00
Closed

GSTR - Natural Bridge Caverns - 8mi

Sep 20, 2025 12.9K 7:45 AM
$90.00
Closed

GSTR - Natural Bridge Caverns - 4mi

Sep 20, 2025 6.4K 7:45 AM
$70.00
Closed

GSTR - Natural Bridge Caverns - Youth 1- Mile Trail Race (12 & under)

The Youth Trail Run is for Kids 12 & under and will be sure to please our youngest trail runners quest for rugged adventure! The distance is approximately 1 mile and parents may run with their kids at no cost. Each young runner gets a finisher's medal! **T-shirts are not included but are available for purchase for $10 during registration. Tejas Trails Youth T-shirts are non-event specific and must be picked up on Race Day during Packet Pick Up.** [Click Here for Tejas Trails Policies](http://www.tejastrails.com/policies) (you really do want to know this stuff)

Sep 20, 2025 1.6K 10:30 AM
$20.00
Closed

Race-day weather

Conditions on September 20, 2025 — historical Open-Meteo data.

Temp (°C)
Minimum temperature (recorded on race day) 23.6° / Maximum temperature (recorded on race day) 34.3°
Feels Like (°C)
Minimum feels like — heat index / wind chill (recorded on race day) 23.6° / Maximum feels like — heat index / wind chill (recorded on race day) 39.8°
Peak wind (km/h)
Strongest wind of the day (recorded on race day)
14.5
Precip (mm)
Precipitation over the day (recorded on race day)
0.0mm
Humidity
Mean relative humidity (recorded on race day)
52.0%
Sunrise
Sunrise at the start line on September 20, 2025 (CDT)
Sunset
Sunset at the start line on September 20, 2025 (CDT)
Daylight
Hours between sunrise and sunset on race day
12h 11m

The sun rises at 7:21 AM and sets at 7:32 PM local time (CDT) in San Antonio on September 20, 2025 — 12h 11m of daylight.

Course

No course map published yet.

The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.

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Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.

  • Entries, prices, waves and inclusions — the event's official registration page
  • Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
  • Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
  • Comparisons and counts — Race Discovery calendar, 253 San Antonio events

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