On foot · Siviez, Valais · August 2024
Cleuson and Lac du Grand Désert
15 August above Siviez: Lac de Cleuson, turquoise as a Caribbean sea, then up the valley to Lac du Grand Désert at the foot of the glacier. A perfect day.
- Date
- August 2024
- Route
- Cleuson · Lac du Grand Désert

The route · indicative
Lac de Cleuson
The Caribbean in Valais
The Cleuson dam holds back water of an unreal turquoise. Pink fireweed blooms on the banks, a dead tree keeps watch above the lake.
The light changes with every step: emerald under the slopes, silver against the sun. Swiss Caribbean experience, as Emmanuelle puts it.
The Grand Désert
At the foot of the glacier
The path follows the stream up the valley, between the fireweed, then through a chaos of boulders.
At the very end, Lac du Grand Désert, milky and dotted with rocks, beneath the peaks. A perfect hike.







