4.7
(62)
5,636
riders
14
rides
Road cycling routes around Lac des Quirlies offer access to the high-mountain landscapes of the Grandes Rousses massif in the French Alps. While the glacial lake itself is not accessible by road bike, the surrounding region provides challenging mountainous terrain for cyclists. Roads leading to trailheads, such as those accessing Le Perron via the Col de Sarenne or the D25 from the Chambon dam, present significant ascents and descents. This area is characterized by dramatic alpine scenery and high-altitude roads.
…Last updated: July 15, 2026
5.0
(3)
353
riders
38.1km
02:41
1,310m
1,310m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
6
riders
15.1km
01:05
540m
540m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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4.7
(21)
2,589
riders
79.7km
05:08
2,340m
2,340m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
4.7
(3)
473
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
4.7
(3)
335
riders
42.4km
03:03
1,570m
1,570m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
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The village of Mizoen, located in the Isère department of France (Auvergne-Rhône-Alpes region), is a typical mountain settlement at the entrance to the Écrins National Park, near Le Bourg-d'Oisans. Its history is deeply linked to mountain agriculture, livestock farming, and, more recently, tourism development thanks to its proximity to the renowned Les Deux Alpes ski resort, offering a peaceful and panoramic setting overlooking Lake Chambon.
4
0
A village of about 150 people, Besse is a timeless beauty. Located in the Écrins National Park, it is the starting point for many hiking and mountain biking excursions and can be reached from the road between Col de Sarenna and Mizoen, a 3-kilometer road with an average gradient of 9%.
1
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The most beautiful hill to climb in these areas.
12
0
There are no crowds here, just you, the mountain, the wind, and the sensation of pedaling on one of the remote peaks of the French Alps. The summit, at almost 2,000 meters, offers a 360° panorama that erases fatigue and ignites the cycling spirit.
4
0
A beautiful route, though challenging, with the last 4 kilometers reaching between 8.5 and 10%. The descent is on a rough road with many potholes. After 5 kilometers, it becomes easier again. A truly stunning route with little to no traffic and beautiful scenery.
0
0
The road cycling routes in the region are generally challenging, characterized by significant elevation gains and high-altitude roads. While there are some moderate options, the area is known for its demanding mountain passes. For example, the Vaujany – Viaduct of Lac du Verney loop from Vaujany is considered difficult, featuring over 1,100 meters of ascent.
Yes, while many routes are challenging, there are options suitable for beginners. The region offers at least one easy route, and several moderate loops that can be a good starting point. These typically feature shorter distances and less extreme elevation changes, allowing for a more relaxed introduction to mountain road cycling.
While road cycling doesn't go directly to Lac des Quirlies, the routes leading to its trailheads and through the broader region offer dramatic alpine scenery. You can expect panoramic views of prominent peaks like the Grand Sauvage and La Meije. The journey might also include sights like the impressive Ferrand waterfall and numerous streams fed by glacial meltwater, especially when approaching areas like Le Perron.
Given the high-mountain environment, the best time for road cycling is typically during the warmer months, from late spring to early autumn (roughly June to September). During this period, mountain passes are generally clear of snow, and weather conditions are more favorable. Always check local weather forecasts before heading out, as conditions can change rapidly at altitude.
The immediate high-altitude roads are generally challenging and may not be suitable for young children or inexperienced family members. However, the broader Isère department offers a variety of cycling paths. For family-friendly options, it's advisable to look for routes in lower valleys or designated cycle paths that avoid significant climbs and heavy traffic.
In this high-mountain region, weather can be highly variable and change quickly. Even in summer, temperatures can be cool, especially at higher elevations, and sudden rain showers or thunderstorms are possible. It's essential to be prepared for all conditions, carrying appropriate layers, rain gear, and sufficient hydration. Always check the forecast before your ride.
The komoot community highly rates the road cycling experience here, with an average score of 4.6 stars from over 100 reviews. Cyclists frequently praise the challenging mountain passes, the stunning panoramic views of the French Alps, and the sense of accomplishment from conquering significant ascents. The dramatic alpine scenery is a consistent highlight.
There are over 10 road cycling routes available for exploration in the Lac des Quirlies region. These routes vary in difficulty, offering options from moderate loops to more challenging climbs, ensuring there's something for different skill levels.
No, Lac des Quirlies itself is a high-altitude glacial lake situated at 2,566 meters and is not accessible by road bike. The area immediately surrounding the lake is protected and primarily suitable for challenging hiking. Road cycling routes in the region lead to trailheads and explore the surrounding mountainous terrain, offering views of the alpine environment.
Yes, the region offers several circular road cycling routes. For instance, the Besse – Mizoën Village loop from Besse is a popular circular route that takes you through alpine villages. Another option is the Marco Pantani curve – Route du pas de la confession loop from Alpe d'Huez Grand Domaine, offering significant elevation gain and panoramic views.
For those seeking a challenge, the region offers several difficult climbs. Routes like the Vaujany – Viaduct of Lac du Verney loop from Vaujany and the Viaduct of Lac du Verney – Vaujany loop from Vaujany feature substantial elevation gains, often exceeding 1,100 meters, and are rated as difficult. These routes provide the kind of demanding ascents typical of the French Alps.
While not directly adjacent to the lake, roads leading to the trailheads are popular for cycling. The route of the Col de Sarenne and the D25 road from the Chambon dam are notable for providing engaging cycling experiences through mountainous terrain, offering access to the dramatic alpine environment near Lac des Quirlies.


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