Caving in the Dent de Crolles : Glaz-Guiers crossing

Duration : 1 day

France, Northern Alps

Level : from 15 years old

from 129 € / p. from 1 to 6 persons

Infos & Booking


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 no one.

But few of them, on the other hand, know that these 2 majestic entrances in the Dent de Crolles communicate through of 2 kilomètre 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-meter well, we reach the "geological floor of the Guiers Mort" and its gigantic galleries.

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



  • Approch walk: 1 hour.
  • Return walk: 1 hour.


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

The price includes

  • Supervision by the caving instructor.
  • Caving equipment.

The price does not include

  • Personal belongings.
  • Anything not mentioned in "The price includes".
Next departures :

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

Infos & Booking