100 Beacons Challenge 2026

Get ready to put your watch away and keep your eyes peeled: the 100 Beacons Challenge takes you deep into the forest of Rennes, on the Grand Bat map, for a trail run unlike any other 🧭.

This traditional event is organized with five formats: 3, 6, 10, 14 or 20 km. Are you coming with family, with friends, or looking for a real challenge? You're sure to find your course, and you'll leave with a big smile on your face.

Once the last beacon is validated, comfort awaits you around Liffré. Here are a few ideas to extend your day:

Extend your walk under the trees in the Liffré forest, which can be explored at a leisurely pace, with no map or stopwatch. Then settle down by the Chevré pond, in La Bouëxière, for a quiet break with well-stretched legs. In Saint-Aubin-du-Cormier, climb up to the tower of the old castle, a real corner of Breton history, before taking a stroll around its pond 🏰.

So, are you coming to find your beacons with us? 😉