Set against the breathtaking landscapes of southwestern France, nestled within the charming village of Urt, lies an unforgettable endurance challenge: the 24h de l’Ardanavy. This unique race invites runners to push their limits and explore the scenic trails along the Ardanavy river for a full day and night. Scheduled in early September as summer's heat begins to wane, this event offers ideal conditions for those looking to test their stamina over 24 hours of racing without the worry of extreme temperatures. With an elevation gain of between 50 to 80 meters per loop, runners will traverse a course that loops through picturesque countryside and along riverbanks, providing stunning views throughout each lap. The race format is straightforward yet challenging: complete twelve laps of 7.5 kilometers within a strict timeframe of two hours for each segment. While the initial thought might be that this distance can easily be covered in under an hour, it’s the repeated effort over such extended periods that truly sets this event apart. The organizers encourage runners to embrace the spirit of teamwork and supportiveness by allowing participants to share their shifts or even complete laps using a joëlette (a wheelchair designed for off-road use), making it accessible for all levels. To ensure fairness in rankings, only those who finish the full 90 kilometers are eligible for classification based on their average lap times. This means maintaining consistent performance throughout rather than saving energy and pushing hard at the end—a true test of endurance and discipline. Beyond its competitive edge, this event is a celebration of nature and community spirit. Runners will experience the tranquil beauty of rural France as they follow winding paths through fields and along waterways. The atmosphere is vibrant, with support from fellow participants, local residents cheering them on, and energy-boosting snacks available at each lap checkpoint. For those looking to extend their adventure beyond running, the region offers a wealth of cultural experiences and natural attractions. From indulging in traditional Basque cuisine like Bayonne ham or veal axoa to exploring nearby surf spots along the coast, there’s no shortage of ways to enjoy the rich heritage and stunning scenery that surrounds Urt. Prepare yourself for an unforgettable journey through both physical and mental challenges at 24h de l’Ardanavy. Ensure you get a good night's rest beforehand and make sure your watch is fully charged; these are essential steps in setting off on this incredible endurance adventure. Join the ranks of runners who have already embraced the unique spirit of this event, where pushing limits meets embracing nature’s beauty. Are you ready to take part?
Races Offered
Autonomie
Sep 12, 2026
straighten
Distance —
7.5K
terrain
Type —
Running
timer
12:00
sell
€50.00
Convivialité
Sep 12, 2026
straighten
Distance —
7.5K
terrain
Type —
Running
timer
12:00
sell
€70.00
Immersion
Sep 12, 2026
straighten
Distance —
7.5K
terrain
Type —
Running
timer
12:00
sell
€80.00
Joëlette
Sep 12, 2026
straighten
Distance —
7.5K
terrain
Type —
Running
timer
12:00
sell
€280.00
Survie
Sep 12, 2026
straighten
Distance —
7.5K
terrain
Type —
Running
timer
12:00
sell
€40.00
Weather History
These values represent the 3-year monthly averages for September in Urt.
thermostatTemperature
14.7° / 23.8°
wb_sunnyFeels like
14.3° / 23.8°
light_mode
Avg sunshine hours
9h 25m
water_drop
Avg rainfall
4.0 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
8.5 km/h (Light breeze)
opacity
Sweat loss rate
Moderate
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (5.0)
humidity_mid
Humidity
79.6%
wb_twilight
Sunrise
07:45
nightlight
Sunset
20:14
About Urt
Learn more about the host city, Urt.
Urt is a village and a commune in the Pyrénées-Atlantiques department in south-western France. It is part of the traditional province of Labourd.