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The Val d'Ainan marshes, made up of pastures, woodlands, wet meadows and reed beds, represent an important nesting site for migratory birds. It is also the habitat of many remarkable amphibians and orchids.

Vestiges of the Ice Age, the marshes of Val d'Ainan extend over 380 hectares, between the Piedmonts of Chartreuse and Lake Paladru. They are an important nesting site for birds, such as the French frostberry, and breeding ground for amphibians. A wide variety of plants also flourishes on the site: you can observe very beautiful orchids such as the Marsh Orchid. And at nightfall, you can admire more common animals like roe deer, which likes to graze in the meadows.

The Departmental Council of Isère manages this Sensitive Natural Area. In collaboration with the municipalities of Chirens and Massieu, private owners and users, a number of objectives have been defined:
- preserve and reinforce the wet character of the marsh
- improve the naturalness of Ainan
- conserve and extend wet peat meadows
- conserve and promote populations of butterflies, amphibians, dragonflies, birds and fish.

The thematic trail, 1800 meters long, allows you to explore the site with your family in complete freedom.

Activities

Customers

  • School groups welcome

Visit

Additional visit:
You also have the option of visiting the site without the help of a guide. Each site is organized around a completely free marked trail.

Customers

  • School groups welcome

Visit languages

  • French

Individual visit services

  • Unguided individual tours permanently

Group visits services

  • Guided group tours on request

Opening

All year.

Prices

Free access.

Equipments and Services

Equipments

  • Theme trail
  • Parking

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From Grenoble, take the A48 towards Lyon, exit 10 Champfeuillet then D1076 towards Voiron and D1075 towards Lac de Paladru to Chirens. Departure of the path after the church (signs).