4.6
(566)
6,223
hikers
22
hikes
Hiking around Onnion, a village in France's Haute-Savoie department, offers access to a mountainous landscape characterized by diverse terrain. The region features prominent mountain passes like Col de Cou and Jambaz Pass, providing varied routes and challenges. Hikers can find panoramic viewpoints, such as those from Chapelle Saint-Bruno overlooking Lac de Vallon, and natural attractions like the Cascade de la Diomaz. The area's peaks and valleys contribute to a network of trails suitable for different hiking experiences.
Last updated: June 25, 2026
4.9
(19)
224
hikers
10.8km
03:44
530m
530m
Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
4.7
(19)
282
hikers
7.81km
02:18
230m
230m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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5.0
(1)
36
hikers
4.14km
01:17
160m
160m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
30
hikers
1.88km
00:46
140m
140m
Hard hike. Great for any fitness level. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(1)
102
hikers
2.09km
00:48
140m
140m
Hard hike. Great for any fitness level. Sure-footedness, sturdy shoes and alpine experience required.
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Here, the trail crosses a small hamlet made up of beautiful houses surrounded by pastures. Before heading into the forest, savor the open panorama of the surrounding mountains one last time.
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The Ajon climb is signposted from Villard. It is 7.3 kilometres long and has an average gradient of 8.3% with a passage at over 15%. At the top, the view at an altitude of 1,406 metres is delightful.
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Steep ascent, many parts are steeper than 10%. In 2023, this climb was included in the Tour.
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Very nice easy walk without any difficulty but have good shoes.
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The Plaine Joux de Passy is 13.3 km long with a total drop of 756 m. The average gradient is 5.7% with maximum gradients of 15%.
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Onnion offers a wide variety of hiking experiences, with over 20 routes available. These trails cater to different skill levels, ranging from easy strolls to challenging mountain treks.
Yes, Onnion has several easy trails perfect for families. For a gentle experience, consider the Chalets d'Ajon – Ascent to Plaine-Joux loop from Pointe de Miribel, an easy 4.1 km path that takes about 1 hour 17 minutes to complete.
Hikers in Onnion can discover a rich natural landscape. You'll find stunning panoramic views, especially from the historic Saint Bruno Chapel overlooking Lac de Vallon. The region also features picturesque mountain passes like Col de Cou and Jambaz Pass, and the notable natural beauty of Cascade de la Diomaz just 4km from the village.
For breathtaking panoramic views, a hike to the Saint Bruno Chapel is highly recommended. Perched on a hill, it offers expansive vistas of Lac de Vallon and the surrounding mountains. Many trails in the area, particularly those with higher elevation gain, will also reward you with stunning scenery.
The spring, summer, and early autumn months generally offer the best conditions for hiking in Onnion, with pleasant temperatures and clear trails. During these seasons, you can fully enjoy the diverse terrain and panoramic views. Winter hiking is possible but may require specialized gear due to snow and ice, especially at higher elevations.
Absolutely. Onnion's mountainous landscape provides plenty of challenging options. A difficult route with significant elevation gain is the Ascent to Plaine-Joux – Pointe de Miribel loop from Pointe de Miribel, a 10.8 km trail that typically takes around 3 hours 43 minutes to complete and offers expansive views.
Yes, parking is generally available at or near the main trailheads in and around Onnion, such as at Pointe de Miribel or Prés Chevriers, which serve as starting points for many popular routes. It's always advisable to check specific trailhead information for detailed parking instructions.
The hiking trails in Onnion are highly regarded by the komoot community, boasting an average rating of 4.6 stars from over 500 reviews. Hikers frequently praise the diverse terrain, the stunning panoramic viewpoints, and the well-maintained paths that cater to various ability levels.
Many of the trails around Onnion are designed as loops, offering varied scenery without retracing your steps. For example, the Chalets d'Ajon – Ascent to Plaine-Joux loop from Prés Chevriers is a moderate 7.8 km trail that takes about 2 hours 18 minutes to complete.
Many trails in the Onnion area are dog-friendly, allowing you to enjoy the beautiful scenery with your canine companion. However, it's always recommended to keep your dog on a leash, especially in areas with livestock or protected wildlife, and to check for any specific local regulations or signage at the trailhead.
If you're looking for a moderate walk that's not too long, consider the Pointe de Miribel – Ascent to Plaine-Joux loop from Pointe de Miribel. This easy 6.6 km route can be completed in about 1 hour 57 minutes, offering a pleasant experience through varied terrain.
Onnion is surrounded by several notable mountain passes that offer excellent hiking opportunities. Besides the well-known Col de Cou and Jambaz Pass, you can also explore Col de Saxel and Col de Réray, each providing unique views and varying levels of challenge.


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