Trail des Vallées

About the Event

Embrace the challenge where the path is as tough as it is beautiful at the Trail des Vallées 2026, returning to Mesnil Roc'h on March 28 and 29, 2026. Presented by Saint Pierre Nature, this flagship event in the Brittany running calendar is a magnet for endurance athletes across France. Located in the heart of Ille-et-Vilaine—within easy reach of Saint-Malo, Rennes, and Dinan—the festival offers a raw immersion into the rolling valleys and pittoresque landscapes of Northern Brittany. Under the motto "The harder the path, the more interesting it becomes," runners gather here to push their limits in an atmosphere of warmth, passion, and true sporting grit.

The 2026 edition features a massive lineup of 8 timed races, ensuring a distance for every level of ambition. For the truly intrepid, the Ultra Trail Des Vallées (115 km) offers an epic odyssey through the Breton countryside, while the Grand Trail (66.6 km) and Tour Des Vallées (42 km) provide intense tests of stamina. Middle-distance specialists can choose between the 33 km Trail Des Vallées or the 25 km Trail Du Roc'h. For those looking for speed or a gateway into trail running, the 15 km Course Du Mesnil and the 12 km Course De Coetquen offer dynamic routes through the valley’s magic. Hardcore challengers can even opt for multi-race stages: the Triple Des Vallées (100 km total) or the Défi De Mesnil Roc'h (40 km total).

Beyond the competition, the Trail des Vallées is a family-centric festival. The weekend includes guided hikes and family walks, allowing everyone to soak in the somptueux regional scenery at a slower pace. Children and teenagers have their own dedicated races, fostering the next generation of champions in a supportive environment. With its technical undulating trails and vibrant community village, this event is a cornerstone of the French trail scene. Visit traildesvallees.com to secure your registration and prepare for two unforgettable days of self-surpassing effort and shared adventure in the heart of Brittany.

Races Offered

Ultra Trail des Vallées 115 Km (XXL)

Mar 28, 2026

straighten

Distance — 115K

terrain

Type — Running

timer

06:00

sell

€80.00

Le Tour des Vallées 42 Km

Mar 28, 2026

straighten

Distance — 42K

terrain

Type — Running

timer

10:00

sell

€35.00

Le Grand Trail des Vallées 66,6 km (XL)

Mar 28, 2026

straighten

Distance — 66.6K

terrain

Type — Running

timer

14:00

sell

€45.00

La Course du Mesnil 15 Km (M)

Mar 28, 2026

straighten

Distance — 15K

terrain

Type — Running

timer

17:00

sell

€14.00