The best MTB trails around Boissy-Le-Sec
4.4
(326)
1,418
riders
184
rides
Last updated: October 28, 2025
4.5
(15)
55
riders
1. Grillon Trail – Fishing pond loop from Sermaise
51.7km
04:17
520m
520m
Intermediate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.5
(6)
6
riders
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
Sign up for free
5.0
(3)
3
riders
3. Cité médiévale de Dourdan – Grillon Trail loop from Les Granges-le-Roi
13.4km
01:04
140m
140m
Intermediate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.
5.0
(1)
2
riders
4. Porte des Bourdeaux... – Saint-Yon Church loop from La Forêt-le-Roi
39.9km
03:18
520m
520m
Intermediate mountain bike ride. Good fitness required. Advanced riding skills necessary.
5.0
(1)
2
riders
5. Medieval town of Dourdan – Grillon Trail loop from Sermaise
35.7km
02:50
320m
320m
Intermediate mountain bike ride. Good fitness required. Advanced riding skills necessary.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Most popular attractions around Boissy-Le-Sec
Get inspired with the komoot mobile app
Explore more
Browse the best MTB trails in other regions.
Get ready to conquer new peaks
Sign up for Free