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France
Auvergne Rhône Alpes
Grenoble

Chirens

The best traffic-free bike rides around Chirens

4.6

(295)

7,308

riders

30

rides

No traffic road cycling routes around Chirens navigate a landscape shaped by ancient glacial activity and diverse natural features. The region features the protected Marais de Chirens, a mosaic of wet meadows and woodlands, alongside varied terrain including undulating hills and valleys. Miocene rocks, particularly puddingstones, form the subsoil, while frontal moraines from the Würm glaciation create a distinct amphitheater. This combination offers road cyclists a range of routes from scenic marshland rides to more challenging ascents in the surrounding…

Last updated: July 4, 2026

3.0

(1)

172

riders

#1.

Col des Mille Martyrs loop from Saint-Nicolas-de-Macherin

27.6km

01:32

550m

550m

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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Moderate

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard
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Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard
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Popular around Chirens

Traffic-free bike rides around Chirens

Traffic-free bike rides around Chirens

Tips from the Community

Clément
October 23, 2025, ↗ "Col des Mille Martyrs" depuis Saint-Nicolas-de-Macherin

Here is the route for the ascent of the Col des Mille Martyrs starting from Saint-Nicolas-de-Macherin

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During Holy Week, Christians commemorate the Passion of Jesus Christ, beginning with the triumphal entry into Jerusalem (Palm Sunday), the Last Supper (Maundy Thursday), and ending with the arrest, condemnation, and execution (Good Friday), which then culminates in the Easter Vigil with the celebration of the Resurrection, the climax of the church year. The biblical accounts of the New Testament that describe these events paint a very nuanced picture of the Apostle Peter (Saint-Pierre), to whom the church of Charavines is dedicated: on the one hand, he is a determined disciple of Jesus, but also not free from human weakness and fear. In the Garden of Gethsemane, he (like the other disciples) falls asleep when Jesus turns to God the Father after the Last Supper and asks the disciples to pray as well. And after Jesus' arrest, Peter denies three times that he even knows him. But he also weeps over his weakness and, upon encountering the risen Christ, affirms his love and loyalty to him. His real name is Simon, but Jesus gives him the name Peter (which means "rock") on which the church is to be built and gives him—according to the account of the Evangelist Matthew—the "keys to the kingdom of heaven."

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Just before the Col de Lachard, superb view of the village of Quincieu!

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Official referenced collar

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Deki Fourcin
November 15, 2024, Lac de Paladru

Very beautiful natural lake of glacial origin in the Chartreuse. The tour of the lake is about 17 kilometers through forest and fields, and allows you to admire the landscape from all angles.

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Very pleasant pass to climb, not too steep a slope, well marked all the way.

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End of the climb and arrival on the plateau

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Arriving from Cessieu, I made a small detour via Voissant then the remaining 4 km to the Col des Mille Martyrs. Easy climb, no cars on this early Sunday afternoon and a very beautiful forest upon arrival. Bucolic viewpoints as a bonus during the climb. The descent to Saint-Geoire-en-Valdaine is perfect. Super rolling surface and moderate slope allow you to reach 50 km/h effortlessly. Paradise exists, it is in Chartreuse.

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Frequently Asked Questions

How many no traffic road cycling routes are available around Chirens?

There are over 30 dedicated no-traffic road cycling routes around Chirens, offering a variety of distances and difficulty levels. You'll find 8 easy routes, 18 moderate, and 5 challenging options to explore.

What is the best time of year for traffic-free road cycling in Chirens?

The Chirens area is ideal for road cycling from spring through autumn. Spring offers lush green landscapes and pleasant temperatures, while autumn provides beautiful foliage. Summers are generally warm and sunny, perfect for longer rides. The varied terrain, from marshlands to hills, makes it enjoyable across these seasons.

Are there easy no-traffic road cycling routes suitable for beginners or families?

Yes, Chirens offers 8 easy no-traffic road cycling routes, perfect for beginners or families looking for a relaxed ride. These routes often feature gentler gradients and scenic paths through the Val d'Ainan or around the Marais de Chirens. For a pleasant, mostly flat option, consider the V63 cycle route – Bicycle rest area loop from Voiron.

Are there challenging traffic-free road cycling routes around Chirens?

Absolutely. For experienced cyclists seeking a challenge, there are 5 difficult no-traffic road cycling routes. These routes often involve significant elevation gains, taking you into the foothills of the Chartreuse massif. An example is the Saint John the Baptist Church – Toutes Aures Pass loop from Beaucroissant, which features over 1000 meters of elevation gain.

Can I find circular no-traffic road cycling routes in the Chirens area?

Many of the no-traffic road cycling routes around Chirens are designed as loops, allowing you to start and finish at the same point without retracing your steps. This includes routes like the Col des Mille Martyrs loop from Saint-Nicolas-de-Macherin, offering varied scenery and terrain.

What scenic viewpoints or natural attractions can I expect on traffic-free road cycling routes near Chirens?

The routes around Chirens offer diverse scenery. You can expect views over the ancient glacial valley of the Val d'Ainan and the unique ecosystems of the Marais de Chirens. Some routes may also offer glimpses of Lake Paladru. For specific viewpoints, look for routes that pass near the Croix des Cochettes View of Lac de Paladru. The area's geological history, with its puddingstones and glacial moraines, also adds to the unique landscape.

Are there any historical landmarks or cultural sites to see along these routes?

While focusing on natural beauty, some routes may pass by or near cultural points of interest. Chirens itself is home to the Benedictine Priory of Chirens, with its 12th-century Romanesque apse. You might also encounter other historical sites like the Dolmen de l'Antillière, depending on your chosen route.

Is there parking available for cyclists near the traffic-free routes in Chirens?

Yes, parking is generally available in and around Chirens, particularly in village centers or designated parking areas, which serve as convenient starting points for many routes. Specific parking information can often be found on individual route pages on komoot.

Can I reach the traffic-free cycling routes in Chirens using public transport?

Chirens is connected by local public transport, though options for carrying bikes may vary. Larger nearby cities like Grenoble and Chambery, approximately 30-34 km away, offer more extensive public transport links. It's advisable to check local bus schedules and bike policies in advance if you plan to use public transport to access the routes.

What do other road cyclists say about the no-traffic routes around Chirens?

The no-traffic road cycling routes around Chirens are highly regarded by the komoot community, with an average rating of 4.6 out of 5 stars from over 300 reviews. Cyclists often praise the quiet roads, diverse landscapes ranging from marshlands to challenging climbs, and the overall sense of tranquility away from heavy traffic.

Are there traffic-free routes specifically around Lake Paladru?

While Chirens itself is not directly on Lake Paladru, its proximity means many routes offer access to the lake area. You can find scenic, low-traffic roads that circle parts of the lake, providing beautiful views and opportunities for lakeside stops. The lake is a significant natural attraction in the region, and routes often incorporate its surroundings.

What makes the Chirens area unique for traffic-free road cycling?

The Chirens area offers a unique blend of natural features for traffic-free road cycling. It's characterized by the protected Marais de Chirens, ancient glacial landscapes, and its position at the foothills of the Chartreuse massif. This provides a diverse cycling experience, from flat, serene rides through wetlands to more demanding ascents with panoramic views, all on roads with minimal vehicle traffic.

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