Best mountain passes around Charvonnex are found in a region characterized by its mountainous surroundings, offering diverse terrain from forested slopes to high-altitude plateaus. The area features several notable cols and peaks, providing panoramic views of Lake Annecy and the surrounding Alps. These locations present varied challenges, from moderate trails to demanding climbs with technical sections. The landscape includes limestone pavements, open meadows, and dense forests, making it a destination for different types of outdoor activities.
Last updated: June 26, 2026
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Here is the route for the ascent of the Semnoz mountain starting from Annecy
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Pass without much interest but the descent from it, rolling, is a treat on a trail!
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The Col de la Frétallaz from Argonay is 4.2 km long with a total drop of 213 m. The average gradient is 6% with maximum gradients of 9.5%.
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At an altitude of 1,050 meters, the Col des Contrebandiers is a vast meadow that marks the intersection of several hiking trails. From there, it is possible to get to Mont Baron, Mont Baret and Veyrier-du-Lac in particular. There is also a parking lot.
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Magnificent shaded road to go up to Semnoz from Annecy.
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When descending, watch out because of deep holes in the road surface
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Nice climb, last part is extra tough. At the top is a restaurant where you can catch your breath and have a bite to eat.
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Not a real cycling highlight, but obviously the highest point of the (busy) D1203 between Annecy and Bonneville.
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For breathtaking panoramic views, consider visiting Col des Sauts, which offers superb vistas of Lake Annecy and is a popular paragliding takeoff point. Another excellent choice is Mont Baron, standing at 1,299 meters, providing sweeping 360-degree views of Lake Annecy, the Semnoz, the Bornes mountains, and even Mont Blanc on clear days. Le Parmelan also offers superb panoramas of Lake Annecy, Lake Léman, and the Mont Blanc range.
Yes, Montagne de Sous-Dine is a demanding yet highly rewarding hike for experienced adventurers. It features steep cliffs, unique 'lapiaz' limestone pavement, and sections with metal ladders to navigate overhang passages. The ascent offers dramatic scenery and extensive panoramic views of the Alps.
Le Parmelan, an imposing limestone plateau, is renowned for its extensive 'lapiaz' landscape—a mineral world sculpted by erosion, characterized by deep cracks, chasms, and faults, giving it an almost lunar appearance. You'll also find varied terrain from dense forests to open meadows and rocky sections across the region's passes.
The best time to visit is generally from late spring to early autumn (May to October) when the weather is milder, and trails are clear of snow. During these months, you can fully enjoy hiking, cycling, and the stunning views. Some higher passes might still have snow in early spring or late autumn.
While many trails can be technical, some sections of Col des Sauts offer more accessible hiking options. For a less strenuous experience, the area around Smugglers' Pass is a vast meadow that serves as an intersection for several hiking trails, providing a more open and less challenging environment for families.
The region offers diverse cycling experiences. For example, you can find routes like the 'Smugglers' Pass – Banks of the Fier River loop' or the 'Frétallaz Pass – Charvonnex by DH loop'. You can explore more options and detailed routes on the Cycling around Charvonnex guide.
Yes, there are several running trails. You can find routes such as the 'Col de la Frétallaz loop from Charvonnex' or the 'Charvonnex by DH – Frétallaz Pass loop'. For more running options, check out the Running Trails around Charvonnex guide.
At the summit of the Ascent of Semnoz from Annecy, there is a restaurant where you can catch your breath and have a bite to eat. Additionally, Le Parmelan has a refuge at its summit, open from mid-May to mid-September, where hikers can rest and even spend the night.
The region around Montagne de Sous-Dine holds historical significance, with nearby memorials documenting events from World War II related to the French Resistance. These areas often served as strategic points or hideouts during historical conflicts.
Trails can vary significantly. For instance, paths leading to Col des Sauts can be technical, with stones and roots, and potentially slippery sections, requiring appropriate hiking gear. The 'lapiaz' formations on Le Parmelan also require caution, especially in foggy conditions, and proper footwear is essential.
Yes, for Smugglers' Pass, there is a parking lot directly at the pass. For Mont Baron, access points include a gravel road at Route Forestière du Mont Baron, with the option to drive closer to a small car park.
The Frétallaz Pass is one of the smaller passes in Haute-Savoie, known for its manageable climb. From Argonay, it's 4.2 km long with a total drop of 213 meters, featuring an average gradient of 6% and maximum gradients of 9.5%.


See even more epic mountain passes by checking out these guides around Charvonnex: