4.3
(355)
2,490
riders
16
rides
Mountain bike trails around Trélex are situated at the foot of the Jura Mountains within the Jura Vaudois Nature Park. The region features a varied topography with rolling hills, dense beech and spruce forests, and expansive meadows. Riders can experience unique karst formations and scenic valleys, alongside panoramic views of Lake Geneva and the Alps from higher elevations. This diverse terrain provides a range of mountain biking experiences.
Last updated: June 23, 2026
4.5
(17)
222
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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3.5
(6)
32
riders
41.1km
03:23
1,020m
1,020m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
4.5
(4)
24
riders
40.4km
02:51
500m
500m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.0
(3)
34
riders
44.9km
03:48
820m
820m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
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a shaded and quiet section on the Coast that I appreciate every time I pass
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A magnificent forest loop. Suitable for all levels, with 200m/20km of really technical sections - easily done on foot.
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Very nice ride. Access routes very nice and safe. The way up to access Mont Mourex parking is a bit technical mainly because of round rocks but easily doable. The Rochassons trail is very nice...a real ride in the park. There is only one section where the trail goes down and is a bit in V shape (maybe because of water during winter). Just take your time and keep focus. Is doable but keep focused. The view from Mont Mourex is great, specially if you are lucky with the weather. Its a very nice 360 view and a nice way down back to the parking.
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Easy trail section.
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Beautiful place, the short climb is worth it and is rewarded with a cool descent.
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Wonderful view 😎🤩
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Path through the Bonmont Golf Course at the foot of the castle. The 62-hectare park is an oasis of peace and greenery. You can admire the view of Lake Geneva and Mont Blanc on a clear day.
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There are 14 mountain bike trails around Trélex listed on komoot, offering a diverse range of experiences. These include 7 moderate and 7 difficult routes, catering to various skill levels within the Jura Vaudois Nature Park.
The terrain around Trélex is highly varied, situated at the foot of the Jura Mountains within the Jura Vaudois Nature Park. You'll encounter rolling hills, dense beech and spruce forests, expansive meadows, unique karst formations, and scenic valleys. Many routes also feature technically demanding sections and offer panoramic views of Lake Geneva and the Alps.
Yes, many trails in the Trélex area offer stunning panoramic views. For extensive views of Lake Geneva and the surrounding landscape, consider the difficult route Chemin de l'Asse – Panoramic View of Lake Geneva loop from Trélex dépôt. Higher elevations like La Dôle and Mont Tendre also provide breathtaking vistas of Lake Geneva and the majestic Alps.
Yes, several mountain bike trails around Trélex are designed as loops. A popular moderate option is the View of Mont Blanc – Mount Mourex loop from Trélex dépôt, which leads through varied forest and open terrain. Another moderate loop is the View from Mont Mourex – Les Rochassons trail loop from Trélex.
The mountain bike trails around Trélex are highly rated by the komoot community, with an average score of 4.3 stars from over 350 reviews. Reviewers often praise the diverse terrain, the challenging sections, and the incredible panoramic views of Lake Geneva and the Alps, especially from routes like La Barillette Bike.
Absolutely. Trélex offers several challenging routes for experienced mountain bikers. The La Barillette Bike is a difficult 56.1 km trail known for its technically demanding sections and significant elevation gain. Another difficult option is the View of Mont Blanc – VATTEY loop from Trélex, covering over 41 km with substantial climbing.
While mountain biking near Trélex, you'll be within the Jura Vaudois Nature Park, known for its unique karst formations, solitary forests, mystical marshland, and pastureland delineated by traditional dry-stone walls. You can also find several mountain passes nearby, such as Col de Porte (Jura) or La Baudichonne Pass and Boundary Markers, which offer additional points of interest and scenic views.
Yes, for those looking for dedicated downhill experiences, there are several bike park highlights nearby. You can explore trails like the Buniel–Nyes Downhill Trail, the Flowy Enduro Downhill Trail, or the Start of Expert Downhill MTB Trail, which are part of the bike parks around Trélex.
The Jura Vaudois Nature Park, where Trélex is located, offers varied conditions throughout the year. While specific recommendations depend on snow cover at higher elevations, generally spring through autumn provides the most favorable conditions for mountain biking, allowing access to the full network of trails through forests and meadows. Always check local weather and trail conditions before heading out.
The duration of mountain bike trails around Trélex varies significantly based on their length and difficulty. For example, the difficult La Barillette Bike, at 56.1 km, typically takes around 5 hours 28 minutes. A moderate route like the View of Mont Blanc – Mount Mourex loop from Trélex dépôt, which is 40.4 km, can be completed in about 2 hours 50 minutes. Always consider your fitness level and planned stops.
Trélex is conveniently located on the Nyon-Saint-Cergue road, which provides access to more mountainous areas and a wider array of trails. While specific public transport options for reaching trailheads directly might vary, the village's location offers a good starting point for exploring the Jura Vaudois Nature Park. It's advisable to check local transport schedules for connections to Trélex and nearby trail access points.


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