Get ready for an unforgettable adventure with the Ultra Trail Grand Colombier! Nestled in the heart of Culoz within the Auvergne-Rhône-Alpes region, this trail running festival offers six distinct courses to cater to runners of all levels. Whether you're a seasoned athlete or just starting out, there’s something here for everyone. For those looking to ease into the race scene, start with the 10 km course that winds through the charming streets and scenic landscapes of Culoz. The 16 km route follows along the Rhône River, offering breathtaking views while remaining relatively flat and accessible. As you progress, challenge yourself on the 30 km trail, which introduces runners to the iconic Grand Colombier pass amid stunning Alpine scenery. For those seeking a more rigorous test of endurance, the marathon distance at 45 km delves into the Bugey region near the Jura border, showcasing diverse terrain and elevations. The real adventure begins with the Ultra Trail’s most demanding routes: an 80 km trek that soars over dizzying valleys with nearly 3,000 meters of elevation gain. This is a journey for those who thrive on pushing their limits. The ultimate challenge? The awe-inspiring 120 km Ultra trail, which covers some of the region’s most breathtaking landscapes—rolling ridgelines, dense forests, serene lakes, and cascading waterfalls. With an astounding 5,000 meters of elevation gain, this route is a true test for even the most experienced runners. Participants can also opt to tackle these longer distances as part of relay teams, making it possible for less seasoned athletes or groups of friends to enjoy the thrill without feeling overwhelmed by the solo distance requirements. After crossing the finish line, refuel with a hearty meal specially prepared for those who have completed 80 km and beyond (excluding relays), helping you regain your strength after such an epic journey. The evening concludes with a celebratory gathering where runners can share their stories over drinks and snacks. But the fun doesn’t stop there! Culoz offers endless opportunities to unwind or explore further. Take advantage of nearby Lake Bourget for some refreshing water activities, just a short drive away from the race venue. For those interested in history and architecture, Belley is a must-visit with its charming old town and rich cultural heritage. For adventure seekers who can’t get enough excitement, head to the Grottes de La Balme where you’ll find an impressive natural cave system that may even lead you through archaeological discoveries from days long past. With so much on offer, whether it’s testing your limits or simply enjoying a weekend getaway in one of France's most beautiful regions, the Ultra Trail Grand Colombier is sure to leave you with memories to cherish for years to come. So why wait? Start planning your adventure today!
Races Offered
Trail 120 km en relais à 5
Sep 26, 2026
straighten
Distance —
120K
terrain
Type —
Running
timer
03:00
sell
€190.00
Trail 120 km
Sep 26, 2026
straighten
Distance —
120K
terrain
Type —
Running
timer
03:00
sell
€140.00
Trail 80 km en relais à 3
Sep 26, 2026
straighten
Distance —
80K
terrain
Type —
Running
timer
06:00
sell
€120.00
Trail 80 km
Sep 26, 2026
straighten
Distance —
80K
terrain
Type —
Running
timer
06:00
sell
€90.00
Trail 45 km
Sep 26, 2026
straighten
Distance —
45K
terrain
Type —
Running
timer
07:30
sell
€55.00
Trail 10 km
Sep 26, 2026
straighten
Distance —
10K
terrain
Type —
Running
timer
10:00
sell
€18.00
Trail 16 km
Sep 26, 2026
straighten
Distance —
16K
terrain
Type —
Running
timer
14:00
sell
€24.00
Trail 30 km
Sep 26, 2026
straighten
Distance —
30K
terrain
Type —
Running
timer
17:00
sell
€40.00
Weather History
These values represent the 3-year monthly averages for September in Culoz.
thermostatTemperature
13.7° / 22.6°
wb_sunnyFeels like
13.7° / 22.5°
light_mode
Avg sunshine hours
9h 11m
water_drop
Avg rainfall
4.2 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
5.0 km/h (Light breeze)
opacity
Sweat loss rate
Moderate
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (3.5)
humidity_mid
Humidity
77.3%
wb_twilight
Sunrise
07:15
nightlight
Sunset
19:46
About Culoz
Learn more about the host city, Culoz.
Culoz is a former commune in the Ain department in the Auvergne-Rhône-Alpes region of France. On 1 January 2023, it was merged into the new commune of Culoz-Béon.
