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Réserve Naturelle Nationale de Passy


Maison de la Réserve naturelle
321 chemin des Parchets
74190 Passy

How do I get there?

About Us

Facing the Mont-Blanc massif, the Passy Nature Reserve dominates the Arve valley.
A real gem of nature, it connects the Sixt-Fer-à-Cheval and Aiguilles Rouges Reserves.
Area: 1800 ha
Altitude: 1300 to 2900 m

The Passy Nature Reserve sums up the mountain history of Haute-Savoie:
- the natural environments: the young cliffs of Fiz dominating the rolling hills of old Pormenaz, the formidable thrust of the Alps opposing their siliceous and limestone nature. From this mineralogical contrast was born the diversity of environments (lawns, moors, wetlands) and alpine species (ibex, eagles, etc.)
- fauna: chamois, ibex, eagle, marmot, grouse, rock ptarmigan, bearded vulture...
- the flora: 530 species have been listed including the Saint-Bruno lily, the martagon lily or even the moss campion...
- flies and biodiversity: syrphids, a kind of fly, are excellent indicators for scientists. The clearing operations in Pormenaz make it possible to assess biodiversity.

Location details

  • In the mountains
  • GR route within 1 km
  • Presence of herds and guard dogs


Average duration of the individual visit: 60 min

Average duration of the group visit: 60 min

Visit languages

  • English
  • Français

Audio guide languages

  • English
  • Français

Individual visit services

  • Unguided individual tours permanently
  • Guided individual tours on request

Group visits services

  • Unguided group tours permanently
  • Guided group tours on request


Opening hours from January 01 to December 31, 2023
Monday Open
Tuesday Open
Wednesday Open
Thursday Open
Friday Open
Sunday Open
Except snow period.




Linked offers

On site

Montée au refuge et désert de Platé

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