Attention the Perris Blancs pass can no longer be crossed:
For safety reasons, the section between the La Tourche hut and Pont de Nant, in either direction, no longer crosses the Col des Perris Blancs.
Its eastern side (between this pass and the Vallon de Nant) is closed.
Coming from the La Tourche hut, once you've reached this pass, instead of crossing it, you'll follow the grassy ridge towards the Col des Martinets, then descend towards the Vallon de Nant via the Grande Vallée.
Alternatively, coming from Pont de Nant, follow the signs to the Col des Martinets via the Grande Vallée, then the Col des Perris Blancs, and follow the signs to the La Tourche hut.
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