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Ayes Pass – Dent de Crolles loop from Saint-Pancrasse

Routes

Hiking trails & Routes

Ayes Pass – Dent de Crolles loop from Saint-Pancrasse

Hard

4.3

(12)

127

hikers

Ayes Pass – Dent de Crolles loop from Saint-Pancrasse

06:58

14.2km

1,120m

Hiking

Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required. The starting point of the route is accessible with public transport.

Last updated: May 13, 2026

Tips

Includes segments that may be dangerous

Parts of this route comprise highly technical, difficult, or hazardous terrain. Specialist equipment and prior experience is required.

After 5.37 km for 388 m

After 7.16 km for 1.83 km

Waypoints

Start point

Bus stop

Get Directions

472 m

View of the Dent de Crolles

Highlight • Viewpoint

Here, you can enjoy superb views of the Dent de Crolles, which dominates the landscape from the top of its 2,062 meters.

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3.30 km

Ruins

3.87 km

Ayes Pass

Highlight • Mountain Pass

Superb view of snow-capped mountains. Fairly frequented place, to do out of season.

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5.26 km

Trou du Glaz

Highlight • Other

The Trou du Glaz is a unique place where fallen rocks seem to be suspended in the air. The entrance to the caves is worth a brief exploration and perhaps a brief respite from the sun on a hot day?

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5.44 km

Narrow Passage with Balanced Boulder

Highlight • Natural Monument

On the way up or down, this passage can be scary but is in fact not at all dangerous or exposed. However, it is better not to have too big a bag!

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7.04 km

At the top of the Dent de Crolles (2,062 meters), the view emerges over the entire Grésivaudan valley. Second highest summit of the Chartreuse massif after Chamechaude at 2082 meters, its ascent is however more technical.

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