4.9
(14)
103
hikers
11
hikes
Mountaineering in Réserve Naturelle Des Grangettes offers routes in the mountainous terrain surrounding the protected wetland area. Situated at the eastern end of Lake Geneva, where the Rhône River flows into the lake, the region is characterized by its proximity to the Arvel and Grammont mountains. While the reserve itself is known for its wetland ecosystems and biodiversity, the adjacent areas provide more challenging mountain environments. The landscape transitions from marshlands and reed beds near the lake to the foothills…
Last updated: May 31, 2026
4.5
(2)
18
hikers
14.8km
06:30
1,010m
1,010m
Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(1)
9
hikers
6.18km
02:28
440m
440m
Moderate mountaineering route. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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5
hikers
14.4km
06:35
1,150m
1,140m
Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(1)
8
hikers
3.84km
01:48
250m
250m
Hard mountaineering route. Great for any fitness level. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(1)
13
hikers
9.50km
04:00
610m
610m
Moderate mountaineering route. Good fitness required. Mostly accessible paths. Sure-footedness required.
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Popular around Réserve Naturelle Des Grangettes
I highly recommend this lovely walk from Vouvry to Lake Taney.
2
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Yes, from Bretaye or from the car park at the end of the forest road, it is an alpine pasture whose last few hundred metres are steep, ideal for the ibex with which I came face to face last June, in the fog!
1
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On foot or by train, for the pleasure of a housewarming or steaming, for a picnic or an alpine restaurant, for the alpine garden or for paragliding, the ROCHERS DE NAYE are the essential destination for thousands of mountain lovers, all different!
0
1
Refreshment stop to warm up in suboptimal weather
0
0
An absolute must for cave freaks. The cave is dark, steep, wet and slippery.
4
0
Terminus of the Montreux railway
3
1
A great view of Lake Geneva, which is not always the case as the lake is often covered in fog.
8
0
The mountaineering routes in this region transition from the wetland ecosystems near Lake Geneva to the foothills and slopes of the surrounding Arvel and Grammont mountains. You can expect high mountain passes, forested slopes, and alpine landscapes, offering diverse terrain with stunning views over Lake Geneva.
Yes, while the Réserve Naturelle Des Grangettes region is known for its challenging mountain environments, there are routes catering to various abilities. You'll find 3 moderate routes and 11 difficult routes, ensuring options for both experienced mountaineers and those looking for a significant challenge.
For those seeking a significant challenge, routes like Grammont – Alamont loop from Le Tâche and Rochers de Naye – Sautodoz loop from Caux are highly rated. These difficult paths traverse high mountain terrain and alpine landscapes, often taking over 6 hours to complete.
Yes, many of the mountaineering routes in the Réserve Naturelle Des Grangettes region are circular, allowing you to start and end at the same point. Examples include the challenging Alamont – Grammont loop from Le Tâche and the moderate Lac de Taney – Refuge La Vouivre loop from Le Tâche.
While the core reserve is a wetland, the surrounding mountaineering routes offer views of Lake Geneva and the mountainous landscape. You might also encounter highlights such as the Mouth of the Rhône River into Lake Geneva, or the Grangettes Footbridge, which offers scenic crossings.
The best time for mountaineering in the mountainous areas surrounding Réserve Naturelle Des Grangettes is typically during the warmer months, from late spring to early autumn (May to October), when trails are generally free of snow and weather conditions are more stable. Always check local weather forecasts and trail conditions before heading out.
While the core Réserve Naturelle Des Grangettes is a biodiversity hotspot known for its birds and wetland species, the higher mountaineering routes will offer different wildlife. You might spot various alpine birds, chamois, or ibex in the more rugged terrain. Keep an eye out for the Bird Observation Hide, Les Grangettes Nature Reserve if you venture closer to the wetland areas.
The duration of these routes varies significantly based on their difficulty and distance. For instance, the difficult routes like Les Cornettes de Bise – Col Chaudin loop from Le Tâche can take over 7 hours, while a moderate route such as Lac de Taney – Refuge La Vouivre loop from Le Tâche might take around 2.5 hours.
Specific parking information for each trailhead is best found on the individual route pages. However, for routes starting from locations like Le Tâche or Caux, there are typically designated parking areas available for hikers and mountaineers. It's always advisable to check the route details on komoot for the most accurate starting point and parking suggestions.
The mountaineering routes in this region are highly rated by the komoot community, with an average score of 4.8 stars. Reviewers often praise the expansive views of Lake Geneva, the challenging yet rewarding ascents, and the diverse alpine landscapes encountered on trails like those in the Grammont mountain range.
Generally, dogs are permitted on many hiking and mountaineering trails in Switzerland, often on a leash. However, specific rules can vary, especially in nature reserves or protected areas. It's recommended to check local signage or the specific route details on komoot for any restrictions regarding dogs, particularly in sensitive wildlife areas.
While popular routes like those around Grammont attract many, exploring some of the less frequently mentioned trails or visiting during off-peak times (weekdays, shoulder seasons) can offer a more solitary experience. Routes that venture deeper into the less accessible parts of the mountains might also be quieter.


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