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Mountain hikes & routes

Auvergne Rhône Alpes

Lac de Pormenaz – Châtelet d'Ayères Refuge loop from Lac Vert

Mountain hikes & routes

Auvergne Rhône Alpes

Lac de Pormenaz – Châtelet d'Ayères Refuge loop from Lac Vert

Hard

5.0

(2)

11

hikers

Lac de Pormenaz – Châtelet d'Ayères Refuge loop from Lac Vert

05:19

12.3km

810m

Mountaineering

Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required. The starting point of the route is right next to a parking lot.

Last updated: April 24, 2026

Tips

Includes segments that may be dangerous

Parts of this route comprise highly technical, difficult, or hazardous terrain. Specialist equipment and prior experience is required.

After 3.47 km for 713 m

After 8.94 km for 33 m

Waypoints

A

Start point

Parking

Get Directions

1

4.35 km

Ladders on the Via Ferrata

Highlight • Climb

2

6.80 km

Lac de Pormenaz

Highlight • Lake

Unfortunately, due to French national park rules, dogs are not allowed to cross the trail - not even if they are on a leash. Camping is also prohibited.

Translated by Google •

Tip by

3

11.0 km

Châtelet d'Ayères Refuge

Highlight • Mountain Hut

You can eat well there!

Translated by Google •

Tip by

B

12.3 km

End point

Parking

Way Types & Surfaces

Way Types

6.49 km

5.55 km

177 m

131 m

Surfaces

5.01 km

3.02 km

2.58 km

1.66 km

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

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Weather

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Thursday 21 May

16°C

5°C

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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