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France
Auvergne Rhône Alpes
Gex

Grilly

The best MTB trails around Grilly

4.3

(306)

2,418

riders

197

rides

Mountain biking around Grilly offers routes through varied terrain at the foot of the Jura Mountains. The landscape features significant elevation changes, with trails winding through forested areas and open paths providing views of the surrounding peaks. This region is characterized by its mountainous environment, offering a mix of challenging climbs and scenic descents.

Best mountain bike trails around Grilly

  • The most popular mountain bike trail is Les Druides charming path – View of the Jura Mountains loop from Grilly

Last updated: June 26, 2026

4.7

(3)

19

riders

#1.

Saint-Pierre Church of Gex – View of the Jura Mountains loop from Grilly

26.3km

02:41

800m

800m

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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Moderate

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard
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Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

5.0

(1)

12

riders

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

Easy
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Popular around Grilly

Pays de Gex - Monts Jura : Les randonnées officielles

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Pays de Gex - Monts Jura : Les randonnées officielles

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Pays de Gex - Monts Jura

Tips from the Community

Julien Harté
April 27, 2026, Voie verte Gex - Divonne-les-Bains

The greenway connecting Gex to Divonne-les-Bains is an easy and pleasant developed route that crosses the green landscapes between the Jura mountains and Lake Geneva. In Divonne, several routes provide easy access to its lake, as well as the mountain bike trails of Mont Mourex, which are very popular with nature and thrill-seekers.

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The Chemin des Druides is a forest trail in the heart of the Jura. It captivates with its bucolic atmosphere and natural landscapes, offering a pleasant walk between nature and legends.

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Located in the Pays de Gex, east of the Ain department, the Château de Vesancy is an elegant residence surrounded by a wooded park. It offers a peaceful setting steeped in history, typical of the region's castles.

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Technical blue line. Can be difficult

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Not for beginners, but it nice and technical.

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An opportunity to avoid riding near cars. It's a shame we have to slow down so often to pass the gates that stop cars.

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Very nice access paths and landscape. There are two sections a bit more technical but doable by average rider like me. First section going up to Mont Mourex (road with some round rocks and a bit muddy when it rains). Second section on the way to the longest loop where the trail is a bit narrow and deep (probably due to rain water going through during winter). In any case, is doable. Just take your time and keep focus :) Definitely a ride to do more times

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Beautiful place, the short climb is worth it and is rewarded with a cool descent.

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Frequently Asked Questions

How many mountain bike trails are available around Grilly?

There are over 200 mountain bike routes around Grilly, offering a wide variety of options for different skill levels and preferences. These include 57 easy, 101 moderate, and 42 difficult trails.

What kind of terrain can I expect when mountain biking in Grilly?

Mountain biking around Grilly features mountainous terrain at the foot of the Jura Mountains. You'll encounter significant elevation changes, with trails winding through dense forested areas and open paths that provide scenic views of the surrounding peaks. The landscape offers a mix of challenging climbs and rewarding descents.

Are there any easy mountain bike trails suitable for beginners in Grilly?

Yes, Grilly offers 57 easy mountain bike trails. An excellent option for beginners is Les Rochassons route – Mount Mourex loop from Grilly, an 8.1-mile (13.0 km) path with gentle ascents and descents. Another easy route is the Grilly Town Center loop from Cessy, which is 7.1 miles (11.5 km) long.

What are some challenging mountain bike trails for experienced riders in Grilly?

For experienced riders seeking a challenge, Grilly has 42 difficult mountain bike trails. While specific difficult routes are not detailed here, the region's mountainous environment and significant elevation changes ensure plenty of demanding options. You can explore routes with substantial climbs and technical descents.

Are there any circular mountain bike routes in Grilly?

Yes, many routes in Grilly are designed as loops. For example, the popular Les Druides charming path – View of the Jura Mountains loop from Grilly is a 16.4-mile (26.3 km) moderate circular route. Another option is the Grilly Town Center loop from Cessy, which is an easy 7.1-mile (11.5 km) loop.

What natural features or viewpoints can I see along the mountain bike trails in Grilly?

The trails around Grilly offer scenic viewpoints, particularly of the Jura Mountains. You can also encounter various natural monuments and peaks. Notable highlights include La Dôle Summit, Grand Montrond, and Mount Mourex. The Versoix River is also a prominent natural feature in the area.

What do other mountain bikers enjoy most about Grilly?

The mountain biking experience in Grilly is highly rated by the komoot community, with an average score of 4.3 stars from over 300 reviews. Reviewers often praise the varied terrain, the scenic views of the Jura Mountains, and the diverse options available for different skill levels, from easy loops to challenging climbs.

Are there any family-friendly mountain bike trails in Grilly?

Grilly offers several easy routes that are suitable for families. The Les Rochassons route – Mount Mourex loop from Grilly is an easy 8.1-mile (13.0 km) path with gentle terrain, making it a good choice for a family outing. The Grilly Town Center loop from Cessy is another easy, shorter option.

Can I bring my dog on the mountain bike trails in Grilly?

While the guide data does not explicitly state dog-friendly policies for Grilly's mountain bike trails, it's generally advisable to check local regulations or specific trail signage before bringing your dog. Many multi-use trails permit dogs, but often require them to be on a leash.

What is the best time of year to go mountain biking in Grilly?

The best time to go mountain biking in Grilly typically depends on weather conditions in the Jura Mountains. Spring and autumn often offer pleasant temperatures and vibrant scenery. Summer can be excellent, but be prepared for potentially warmer weather. Winter riding might be possible on some lower elevation trails, but higher routes could be affected by snow and ice.

Are there any long-distance mountain bike routes in Grilly?

Yes, Grilly features longer routes for those seeking extended rides. The Les Druides charming path – View of the Jura Mountains loop from Grilly is a moderate 16.4-mile (26.3 km) route, and the Les Rochassons route – Les Druides charming path loop from Grilly is a similar moderate route spanning 16.3 miles (26.2 km).

Where can I find parking or public transport access for mountain biking in Grilly?

While specific parking areas or public transport links are not detailed in the guide data, Grilly is a town, suggesting there would be general parking available. For specific trailheads, it's recommended to check the individual route details on komoot for information on starting points and accessibility.

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