The 6 valleys, named after the 6 rivers that cross them, each mountain hut lakes and waterfalls powered by sources, but especially by the mountain torrents to the melting of snow, which is very abundant at altitude.

Be careful, the mountain ecosystem is very fragile.

To preserve it, do not swim in the lakes. For your safety, also respect the signs installed on the banks of lakes and waterways, hydraulic structures and rising water levels can put you in danger. In Oisans, only the Lake of Buissonnière is suitable for swimming.

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  • Hiking route

    Pré Reynaud

    • Oz-en-Oisans
    • 00:40
    • 10 D +
    • 2,0 km

    Green level – Easy

    Pré Reynaud
    Pré Reynaud, © Oz-en-Oisans Tourist Office

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  • Hiking route

    Vallon de Lanchatra – randonnée depuis le Plan du Lac

    • Saint-Christophe-en-Oisans
    • 03:30
    • 699 D +
    • 699 D-
    • 10,4 km

    Blue level – Moderate

    Vallon de Lanchatra – hike from Plan du Lac
    Lanchatra Valley – hike from Plan du Lac, © Véronique Turc

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  • Hiking route

    Lac et refuge du Goléon

    • La Grave
    • 04:30
    • 670 D +
    • 5,0 km

    Red Level – Hard

    Goléon lake and refuge
    Lake and refuge of Goléon, © S.MORATTEL/OTHV

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  • Hiking route

    Randonnée Balade du Ferraret

    • Venosc
    • 01:30
    • 161 D +
    • 2,3 km

    Green level – Easy

    Ferraret Hike
    Ferraret Walk Hike, © Lebert

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  • Hiking route

    Randonnée été : La cheminée d’équilibre

    • Vaujany
    • 04:00
    • 460 D +
    • 460 D-
    • 4,9 km

    Blue level – Moderate

    Summer hike: The balancing chimney
    Summer hike: The balancing chimney, ©OTVaujany

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  • Hiking route

    Les 7 Laux – randonnée depuis le Rivier d’Allemond

    • Allemond
    • 06:00
    • 904 D +
    • 904 D-
    • 10,8 km

    Red Level – Hard

    Les 7 Laux – hike from Rivier d'Allemond
    Les 7 Laux – hike from Rivier d'Allemond© OT les 7 laux

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  • Hiking route

    Ornon – Randonnée depuis Le Bourg d’Oisans

    • Le Bourg-d’Oisans
    • 03:30
    • 520 D +
    • 520 D-
    • 16,4 km

    Blue level – Moderate

    Ornon – Hiking from Le Bourg d'Oisans
    Ornon – Hike starting from Le Bourg d'Oisans, © BIT Le Bourg-d'Oisans

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  • Hiking route

    Villard Reculas – Randonnée depuis le Raffour (Bourg-d’Oisans)

    • Le Bourg-d’Oisans
    • 05:00
    • 761 D +
    • 761 D-
    • 11,0 km

    Red Level – Hard

    Villard Reculas – Hiking from Raffour (Bourg-d'Oisans)
    Villard Reculas – Hike from Le Raffour (Bourg-d'Oisans), © OTBO

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  • Hiking route

    Le Pré de la Pierre

    • Oz-en-Oisans
    • 01:15
    • 290 D +
    • 290 D-
    • 3,8 km

    Blue level – Moderate

    The Stone Meadow
    Le Pré de la Pierre, © Oz-en-Oisans Tourist Office

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  • Hiking route

    Randonnée 4 saisons : Barrage du Verney

    • Vaujany
    • 00:50
    • 16 D +
    • 16 D-
    • 1,9 km

    Green level – Easy

    Four-season hiking: Verney Dam
    Four-season hike: Verney Dam, ©BobBrunot

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  • Hiking route

    Le tour des deux cascades – randonnée depuis le Clot

    • Saint-Christophe-en-Oisans
    • 02:15
    • 100 D +
    • 4,5 km

    Blue level – Moderate

    The two waterfalls tour – hike from Clot
    The Two Waterfalls Circuit – Hike from Le Clot, © La Bérarde Tourist Office

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  • Hiking route

    La source ferrugineuse

    • Oz-en-Oisans
    • 01:30
    • 340 D +
    • 340 D-
    • 4,0 km

    Blue level – Moderate

    The ferruginous source
    The iron-rich spring, © Charlotte Rochette

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