MAY23
Trail Running•Marathon
El Cainejo
Caín de Valdeón, Castilla y León, España35.7 km+3,700 m
Trail Running50K
Desafío Ultra El Cainejo
23 May 2026
Caín de Valdeón, Castilla y León, España
Race details
Modality
Individual
Organizer
Desafío El Cainejo
Distance
52 km
Elevation
+5,100 m
Start time
06:00
Terrain
Trail
Difficulty
Elite
Course profile
Mountainous
Minimum age
18+
Certified
No
Event description
Desafío Ultra El Cainejo is one of Spain's most demanding trail running races, set in the heart of the Picos de Europa National Park starting from Caín de Valdeón. Featuring 52 km with 5100m of elevation gain, the course is notoriously technical, traversing spectacular limestone ridges and steep gullies. It is a bucket-list event for advanced mountain runners seeking a raw and authentic high-altitude challenge.
Related events
MAY24
Trail Running•Half Marathon
El Cainejín
Caín de Valdeón, Castilla y León, España19.5 km+1,800 m
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Sport
Trail Running
Distance
50K
Country
España
Region
Castilla y León