18October2026
The challenge of fort l'Ecluse
The Sunday 18 October
Mairie rue du jura 01200 Léaz
The Fort Challenge, a unique race combining nature, stunning scenery and the 917 steps of Fort l'Écluse to climb. Get ready!
The Fort L'Ecluse Challenge is a unique race on an exceptional site; a site steeped in history, combining both cultural heritage and grandiose landscapes…
Its courses of 12 or 19km, mix roads and paths, wide tracks and monotraces…
Departing from the village of Léaz, the routes cross spectacular landscapes, particularly near the listed site of the Virgin of Léaz overlooking the Rhône, and the gorge of the Ecluse. But the strong point of this trail is the passage in the incredible underground gallery of Fort l’Ecluse and its 917 steps.
Themes
- Pedestrian sports
- Race (on foot)
All dates and times
| Opening hours on 18 October 2026 | |
|---|---|
| Sunday | Open |
Prices
There is a charge to register for the challenges, but you can cheer on the runners for free. The route between the Lower Fort and the Upper Fort of the Fort l'Ecluse site will be prohibited to the public. (underground gallery, 917 steps)


