Trail des Collines Bleues 2026

Trail des Collines Bleues is a nature trail event held in early December in Châteaulin, Finistère, Brittany. Courir à Châteaulin organizes it, offering two off-road races: one approximately 8 km and another around 14 km, with the longer distance being the more chosen option. The routes traverse the blue hills surrounding Châteaulin and feature a viewpoint overlooking the town. The 8 km race is designed as the more accessible trail, open to the cadet category and up. The 14 km route involves more climbing, with elevation gains listed between 120m and 250m D+ for the two distances, although some sources indicate higher figures. A past edition was canceled because of the organizers' inability to secure first-aid services, emphasizing their commitment to participant, volunteer, and spectator safety.