Mountain passes around Grésy-Sur-Aix, a commune in the Savoie department of France, offer routes through mountainous terrain. The region is known for its proximity to Lac du Bourget and the Auvergne-Rhône-Alpes. These passes provide access to various elevations and natural features. The area presents opportunities for exploring the landscape of the French Alps.
Last updated: June 26, 2026
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It's a must-see place with a magnificent view of Lake Bourget.
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Good road with not too many cars
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There is a new section of the Via Rhona between Motz and Serriere en Chautagne. It is well signposted towards Motz and then winds through fields and parallel to the main road without much guidance.
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From the centre of Chambéry, the climb of the pass starts at the exit of St Alban Leysse and is done very regularly crossing the villages of St Jean d'Arvey then Déserts where the view of the Margériaz will accompany you to the summit. Source: Chambéry mountains
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Magnificent pass, view of Lake Bourget all along.
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The Col de Plainpalais is located in the Rhone-Alpes. This climb is part of the Alps. From Chambery, the Col de Plainpalais is 16.2 km long. Over this distance 903 altimeters are bridged. The average slope of the rise is, therefore, 5.6%.
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Incredible view of Lac du Bourget
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Many passes in the area offer stunning panoramic views. For instance, the ascent of Col du Chat (638 m) provides fantastic vistas of Lac du Bourget. Similarly, Chambotte Pass features magnificent views of Lac du Bourget along its route, with a short detour leading to a belvedere offering a superb 360° panorama including Lake Bourget, the Grand Colombier, and the Aravis range.
Yes, the broader Savoie region is home to several legendary and demanding passes for cyclists. These include the Col du Galibier (2,642 m), known as one of the most emblematic passes in the French Alps, and the Col de l'Iseran (2,764 m), often considered Europe's highest road pass. Other challenging options are the Col de la Madeleine (1,993 m) and the Col du Glandon (1,924 m), both frequently featured in the Tour de France.
The Col du Chat (638 m) is popular for its picturesque views of Lac du Bourget during the ascent from the east side. While the summit itself is wooded, the journey up offers scenic panoramas of the lake below. It's a well-known attraction in the area, appreciated by the komoot community for its beautiful climb.
The Chambotte Pass is renowned for its magnificent views of Lac du Bourget along its route. A key highlight is a short detour from the pass that leads to a belvedere, providing a superb 360° panorama over Lake Bourget, the Grand Colombier, and the Aravis range. Visitors also note a water point at the pass level.
The Plainpalais Pass from Chambéry presents a significant challenge for cyclists. It is 16.2 km long with a total elevation gain of 903 meters. The average gradient is 5.57%, with maximum gradients reaching 10.4%. Some visitors note that it can have considerable car traffic, suggesting prioritizing the ascent through the Bauges.
The region around Grésy-Sur-Aix offers diverse outdoor activities. You can find numerous routes for cycling, gravel biking, and running. For cycling, explore options like the 'Chambotte Pass – Beautiful gravel road loop' or the 'Semnoz ascent – Col du Semnoz summit loop'. Gravel biking enthusiasts can try the 'Col du Chat – Ontex Viewpoint loop'. For running, there are trails such as the 'La Chambotte Viewpoint – A good way to unwind loop' or the 'Sierroz Gorge Trail loop'. You can find more details on these activities in the Cycling around Grésy-Sur-Aix, Gravel biking around Grésy-Sur-Aix, and Running Trails around Grésy-Sur-Aix guides.
Yes, there are several gravel biking routes that incorporate or pass near these mountain passes. For example, you can explore the 'Col du Chat – Ontex Viewpoint loop from Grésy-sur-Aix' which is a difficult 61.5 km route, or the 'Canal de Savières Road – Chambotte Pass loop from Saint-Jean-de-Chevelu', a difficult 64.5 km route. More options are available in the Gravel biking around Grésy-Sur-Aix guide.
Absolutely. The area around Grésy-Sur-Aix offers various running trails, some of which provide access to scenic mountain pass areas. Notable routes include the 'La Chambotte Viewpoint – A good way to unwind loop from Grésy-sur-Aix' (30.7 km, difficult) and the 'Sierroz Gorge Trail loop from Grésy-sur-Aix' (15.7 km, difficult). For more running options, consult the Running Trails around Grésy-Sur-Aix guide.
The best time to visit the mountain passes around Grésy-Sur-Aix is generally from late spring to early autumn (June to October) when the weather is milder and the passes are fully accessible. Legendary high-altitude passes in the broader Savoie region, such as Col de l'Iseran, are typically open during this period. Visiting outside of the summer season can also help avoid heavy traffic on popular routes like the Chambotte Pass.
While some passes offer challenging climbs, the region also provides varied experiences. For those seeking less strenuous options, consider exploring the plateaus at the top of passes like Col du Sapenay Ascent and Descent, which offers beautiful views of Lake Bourget with almost no car traffic. When planning, look for routes described as 'intermediate' or 'moderate' difficulty in nearby activity guides.
Beyond the immediate vicinity of Grésy-Sur-Aix, the Savoie region boasts several other significant mountain passes. These include the Col des Saisies (1,681 m), a famous pass frequently featured in the Tour de France; the Col des Aravis (1,487 m), popular with cyclists and connecting ski resorts; and the historic Col du Mont Cenis (2,083 m), situated on the border between France and Italy.
Visitors particularly enjoy the scenic beauty and the sense of accomplishment from tackling the climbs. The fantastic views of Lac du Bourget from passes like Col du Chat (638 m) and Chambotte Pass are frequently highlighted. The challenging gradients of passes like Plainpalais Pass also appeal to cyclists seeking a rewarding experience. The overall appeal lies in the combination of natural beauty, varied terrain, and opportunities for outdoor sports.


See even more epic mountain passes by checking out these guides around Grésy-Sur-Aix: