August 1st and 2nd mark the return of one of the most anticipated trail running events on the calendar: the 25th edition of this spectacular race, nestled amidst some of the most breathtaking landscapes in the French Alps. On August 1st, runners can look forward to a shorter but no less thrilling experience with the 7km trail run, offering an intimate glimpse into the beauty and charm of the region's trails. The main event takes center stage on August 2nd, as participants tackle the grueling yet rewarding 42km course. This epic journey is renowned for its stunning panoramas, including views of Mont Blanc, Le Roc du Vent, and Pierra Menta. The trail weaves through a diverse terrain that includes picturesque alpine meadows, dense forests, charming hameaux (hamlets), and technical paths that challenge even the most seasoned runners. The route ascends to impressive heights, reaching 2110 meters at Roche Parstire where participants can take in panoramic views of both Arêches Valley and Roselend. The course then descends towards Lac de St Guérin before taking a unique detour across the Himalayan-style bridge that spans the tranquil waters. Running along the ski slopes, runners will experience an exhilarating ascent back into the alpine meadows, eventually descending through Beaufort to reach Arêches village for a lively pit stop in its heart. The 17km "La Petite Frison" offers a more manageable yet equally scenic loop around Beaufort and Arêches, with runners traversing typical beaufortain prairies, forests, and hameaux. Both routes celebrate the rich natural beauty of the region while providing an unforgettable challenge for trail enthusiasts. Whether you're looking to push your limits on the long course or enjoy a shorter but equally scenic run, this event promises an experience that is hard to forget. The race organizers have ensured every detail from route planning to support services will cater to runners' needs, making it not just a test of endurance but also an exploration of one of France's most picturesque landscapes.
Races Offered
Challenge Frison - sur 2 jours 7+17km
Aug 01, 2026
straighten
Distance —
17K
terrain
Type —
Running
timer
16:00
sell
€36.00
La Frison Roche
Aug 02, 2026
straighten
Distance —
La Frison Roche
terrain
Type —
Running
timer
06:00
sell
€46.00
La Petite Frison
Aug 02, 2026
straighten
Distance —
La Petite Frison
terrain
Type —
Running
timer
08:00
sell
€26.00
La Mini Frison
Aug 02, 2026
straighten
Distance —
La Mini Frison
terrain
Type —
Running
timer
16:00
sell
€15.00
Kid's Roche
Aug 02, 2026
straighten
Distance —
Kids Roche
terrain
Type —
Running
timer
17:00
sell
€5.00
Weather History
These values represent the 3-year monthly averages for August in Arêches-beaufort.
thermostatTemperature
7.5° / 18.0°
wb_sunnyFeels like
5.6° / 16.0°
light_mode
Avg sunshine hours
11h 30m
water_drop
Avg rainfall
2.7 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
4.7 km/h (Light breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (4.9)
humidity_mid
Humidity
73.5%
wb_twilight
Sunrise
06:34
nightlight
Sunset
20:38
Hotels & Places to Stay
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