4.2
(374)
2,735
riders
238
rides
Mountain biking around Grens features diverse terrain, characterized by its proximity to Lake Geneva and views of the Jura Mountains and Mont Blanc. The region offers a mix of challenging ascents and descents through forested areas and open landscapes. Trails often traverse varied elevations, providing opportunities for both endurance rides and technical sections.
Last updated: June 20, 2026
4.5
(17)
221
riders
56.1km
05:29
1,600m
1,600m
This difficult 34.9-mile mountain biking loop in the Parc naturel régional Jura vaudois offers challenging terrain and panoramic views.
4.5
(10)
88
riders
35.4km
03:45
1,140m
1,140m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

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5.0
(5)
31
riders
37.8km
03:21
840m
840m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
5.0
(2)
16
riders
49.7km
04:26
1,150m
1,150m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
4.3
(20)
154
riders
31.5km
03:12
1,090m
1,090m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
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Easy trail section.
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Wonderful view 😎🤩
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Stunning view of Mont Blanc
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Fun and twisty flowing singletrack through the trees. Stay focused!
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1
Saint-Cergue is a beautiful, typical commune in the canton of Vaud. At an altitude of 1,041 meters, the panoramas of Lake Geneva and the Alps proliferate.
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Rustic Swiss hut with simple, high-quality food
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There are over 240 mountain bike trails around Grens, offering a wide variety of options for different skill levels and preferences. This includes 46 easy routes, 122 moderate routes, and 76 difficult routes.
Mountain biking around Grens features diverse terrain, characterized by its proximity to Lake Geneva and views of the Jura Mountains and Mont Blanc. You'll find a mix of challenging ascents and descents through forested areas and open landscapes, with varied elevations providing opportunities for both endurance rides and technical sections.
Yes, Grens offers 46 easy mountain bike routes perfect for beginners or those looking for a more relaxed ride. These trails typically have less demanding climbs and descents, allowing you to enjoy the scenery without excessive technical challenges.
Absolutely. Many trails in the Grens area offer stunning panoramic views. For example, the difficult route Saint-Cergue – Panoramic View of Lake Geneva loop from L'Asse provides expansive vistas of Lake Geneva. Another challenging option, View of Mont Blanc – VATTEY loop from Trélex, offers impressive views of Mont Blanc.
The mountain bike trails in Grens are highly rated by the komoot community, with an average score of 4.2 stars from over 380 reviews. Riders often praise the diverse terrain, the stunning views of Lake Geneva and the Jura Mountains, and the well-maintained paths that cater to various skill levels.
Yes, many mountain bike trails around Grens are designed as loops, allowing you to start and end at the same point. For instance, the moderate Flowy Enduro Downhill Trail loop from L'Asse is a popular circular route that takes you through varied forest and open sections.
While mountain biking around Grens, you can explore several natural attractions. Notable highlights include the La Dôle Summit, the scenic Col de Porte (Jura), and the tranquil Bois de Chênes Nature Reserve. You can also find breathtaking vistas like the View of Lake Geneva and the Alps from Combe Blanche.
Yes, the region around Grens features several dedicated bike park areas and downhill trails. You can find highlights such as the Buniel–Nyes Downhill Trail, the Flowy Enduro Downhill Trail, and even a Beginner Downhill Trail Loop for those new to the sport.
The best time for mountain biking in Grens is typically from spring through autumn (April to October) when the weather is milder and trails are clear of snow. During these months, you'll experience pleasant temperatures and lush landscapes, ideal for exploring the diverse terrain.
While many higher elevation trails may be covered in snow during winter, some lower-lying routes around Grens might remain accessible, depending on snow conditions. It's always advisable to check local trail conditions and weather forecasts before heading out in winter.
For experienced mountain bikers seeking a challenge, Grens offers 76 difficult routes. A notable example is La Barillette Bike, a 56.1 km trail with significant elevation changes that takes approximately 5 hours 28 minutes to complete, offering panoramic vistas.
Trail distances vary widely, from shorter loops to longer endurance rides. For example, the difficult Chemin de l'Asse – Panoramic View of Lake Geneva loop from Trélex dépôt covers 35.4 km with over 1100 meters of elevation gain. You'll find routes with diverse elevation profiles, from gentle climbs to demanding ascents and descents.


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