Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Login or Signup

Routes
MTB trails
France
Auvergne Rhône Alpes
Gex

Grilly

The best MTB trails around Grilly

4.3

(300)

2,480

riders

186

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: May 14, 2026

4.5

(19)

105

riders

#1.

Les Rochassons trail – Mount Mourex loop from Gex

23.4km

02:18

500m

500m

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

Navigate with device

Send to Phone

Save

Moderate

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

Moderate
guide_signup
Let us show you the way with the komoot mobile app
With a free komoot account, you can easily find, customize, and navigate endless outdoor adventures.

Sign up for free

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

Moderate

Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.

Hard

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

Hard
Sign up for free to see 182 more rides around Grilly.

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.

Start today with a free account

Your next adventure awaits.

Login or Signup

Popular around Grilly

Pays de Gex - Monts Jura : Les randonnées officielles

Road Cycling Routes around Grilly

Cycling around Grilly

Gravel biking around Grilly

Running Trails around Grilly

Hiking around Grilly

Other adventures around Grilly

Pays de Gex - Monts Jura : Les randonnées officielles

Hiking Collection by

Pays de Gex - Monts Jura

Tips from the Community

Ain Tourisme
May 6, 2026, Mont-Mussy

The Grande source and its streams gush out in a small wood at the foot of Mont-Mussy. They form the main source of La Divonne, a 22 km long river, which flows into Lake Geneva, in Switzerland, at Versoix.

Translated by Google

0

0

A magnificent forest loop. Suitable for all levels, with 200m/20km of really technical sections - easily done on foot.

Translated by Google

0

0

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.

0

0

Easy trail section.

Translated by Google

0

0

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

Translated by Google

0

0

Chapel in the middle of the meadows with a view of the Lake Geneva basin

Translated by Google

0

0

The view of Mont Blanc is often obscured by clouds

Translated by Google

0

0

Half way along this climb/descent, there's a a seating area with a superb view out to Lac Léman. Take a moment to take in this scenery!

0

0

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.

Most popular routes around Grilly

Road Cycling Routes around Grilly

Most popular attractions around Grilly

Places to see

Store rating

Get inspired with the komoot mobile app

With a free komoot account, you can easily find, customize, and navigate endless outdoor adventures.

or

Join komoot Now

Store rating

Explore more

Browse the best MTB trails in other regions.

CessyChézery-ForensDivonne-Les-BainsÉchenevexChevryRéserve naturelle de la haute chaîne du JuraSégnyPougnyLélexCrozetMijouxLéazSergyOrnexPrévessin-MoënsFerney-VoltaireVersonnexVesancyThoiryLac de DivonneLancransSauvernyPéronCollongesConfortFargesSaint-Jean-De-GonvilleChallexSaint-Genis-Pouilly

Nearby adventure guides

Things to Do around Sauverny

background

Get ready to conquer new peaks

Sign up for Free

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy