La Montoise is a spring event in Sentilly focused on mountain biking, trail running, and walking, without timing or a race clock. Organized by Les Foulées des 3 Monts, it allows participants to move through the day at their own pace rather than chasing a result.
The walking options include two routes: 13 km starting at 9:30 AM and 9 km starting at 10 AM. The event signifies the return of warmer days, with proceeds supporting the Camille La Chenille association; this Sentilly edition is the sixth running.