Alert

Alerts

To see around
See more
Open
Close
Show
Show
Show
Show
Show
Show
Show
Show
Show
Show
Show

Oups... It would appear that Cirkwi does not have permission to use your location.

Presentation
Description
Map
Points of interest
Ratings and reviews
See around

Lac de Soi

2 alerts on this circuit

Visitor alert

- From 25/10/2025 to 30/04/2026

Due to a landslide, the Frassenaye waterfall trail will be closed from 22.10.2025 to 30.04.2026. To go up to Soi, take the Pro Déforan path (see swisstopo map or SuisseMobile for the closed section).

CASCADE DE FRASSENAYE:

Alerte visiteurs

- From 25/10/2025 to 30/04/2026

Suite à un éboulement, le sentier de la cascade de Frassenaye sera fermé du 22.10.2025 au 30.04.2026.

Description

Perched at an altitude of 2,247 m, the strenuous hike is well worth the glorious surprise that awaits you here!

Plan de Soi (route des Rives) - Signal de Soi - Lac de Soi - Cascade de Frassenaye - Plan de Soi

The aquamarine jewel in the Dents du Midi’s crown, this limpid alpine lake is set in an improbable labyrinth of stone artwork, as if surrounded by the ruins of a fairytale civilization.

Departure point on the Les Rives road at point 1206.

Follow the steep trail from Plan de Soi ascending NE in zigzags. At the pass, a path follows the Soi Ridge. After the pastures, the path crosses two rivers and a small ravine to reach the lake. Descend by the same path; if you have the energy, you can take a short detour from the pass, following a trail to the Signal de Soi viewpoint

A little history:
In 1989, Pierre-Marie Cherix brought his brother to visit this magnificent site. The two brothers fell hopelessly in love with the magic of this place, with its sparkling alpine lake and abundant local stone scattered throughout the plateau. The first dry-stone cairn they built triggered a lifelong passion which has resulted in an intricate stone landscape which showcases the raw, mineral beauty of the Alps.

In the Soi area, in August, September and October, sheepdogs and sheep are in the area. Dogs are not allowed.

Bivouac and camping prohibited.

Technical Information

Walking
Difficulty
Not specified
Duration
5h
Dist.
11 km
Show more

Altimetric profile

Starting point

17 Route des Rives Plan Soi , CH - 1873   Val-d'Illiez
Lat : 46.181808Lng : 6.900249

Additional information

Updated by

Région Dents du Midi SA - 25/10/2025
www.regiondentsdumidi.ch
Report a problem

Data author

Place du Village 5 1873 Val-d'Illiez Suisse

Ratings and reviews

To see around
See more
Open
Close
Show
Show
Show
Show
Show
Show
Show
Show
Show
Show
Show
Caution!
We have no information on the difficulty of this circuit. You may encounter some surprises along the way. Before you go, please feel free to inquire more and take all necessary precautions. Have a good trip! 🌳🥾