Dent de Crolles : Traversée Glaz-Guiers

Duration : 1 day

France, Northern Alps

Level : from 15 years old

from 129 € / p. from 1 to 6 persons

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Which hiker in the Chartreuse massif, close to Grenoble, hasn't walked past the trou du Glaz or the porch of the Guiers Mort? Probably none.

But few of them, on the other hand, know that these 2 majestic entrances in the Dent de Crolles communicate by means of 2 km of wells and galleries.

And this is precisely what this crossing, which has remained unknown for a long time, offers to discover. After a first technical part, including the splendid 36-meters pit, we reach the "geological floor of the Guiers Mort" and its gigantic galleries.

A grandiose underground expedition, for lovers of sensations and breathtaking landscapes.



  • Approch walk: 1h.
  • Return walk: 1h.


  • Duration: from 6h to 8h.
  • Distance: 2 km.
  • Pits: 14.
    • Descending: 13.
    • Ascending: 1.

The price includes

  • Supervision by the caving instructor.
  • Caving equipment.

The price does not include

  • Personal belongings.
Next departures :

No scheduled departure, but you can contact me to book your dates.

Infos & Booking