Currently the site is closed: ANNUAL CLOSURE

Reopening of the site is scheduled for Thursday, Mai the 26, 2022

(Attention: this date is likely to be delayed, according to the importance of the damage discovered after the winter and the surplus of preparation and safety work induced.

The opening date indicated can be considered as firm and final only one week before its expiry).

Please note that it is completely forbidden to enter the site when it is closed!


Indeed :

- each autumn and each spring, our team SYSTEMATICALLY carry out security work on the route by cleaning the cliffs and thus causing a lot of falling rocks

- during winter the trail is extremely dangerous because the numerous phases of freeze-thaw generates almost daily avalanches and falls of ice, of trees and of stones.

Information COVID-19 (the 28 of July) :


For people over the age of 18, the health-pass is required to complete the visit.

(either vaccination certificate, or certificate of recovery less than 6 months old, or antigen test or PCR less than 72 hours)


Wearing a mask is compulsory during the visit because the walk takes place, back and forth, on the same narrow path which implies numerous crossings and overruns between visitors during which social distancing cannot be ensured.

On the other hand, because the barriers are equipped with a handrail, the use of hydroalcoholic gel is recommended.

(masks and gel are available at cost price at the store) 


We rely on the courtesy and common sense of all so that everyone can enjoy a pleasant and safe experience.

Opening hours

 July and August from 9am to 6pm (last ticket)

June and September from 9.30am to 5pm (last ticket)

Those opening hours could be modified in case of bad weather 

Pratical informations

difficulty : moderate (mountain path)

unguided visit /duration about 1 h15

total length of the itinerary 2km 600

positive ascent = 1 30m (about 600 steps)

good shoes are recommended

baby carrier compulsory / non suitable for strollers

dogs welcomed if sociable and kept on a leash

no access to the torrent / swimming is forbidden


no toilets along the footpath

Flow of the Diosaz

The flow of the torrent of the Diosaz is mainly related to the presence of EDF dam upstream of the walk. Therefore the weather conditions influence the flow of the torrent only during heavy rain and dry period.

A contract between EDF and society Gorges Diosaz allows a natural flow into the grooves only in July / August and a few hours in June and September (see dates below)


In June and September : low flow. A quiet atmosphere conducive to contemplation. This is the ideal time to admire the erosion, the water clarity and its emerald colour so typical to the Diosaz.

(In June and September, there is still an opportunity to visit the site with a higher flow : every Saturday and Sunday between 2pm and 3.30pm and every  Wednesday between 2pm and 3 pm.)


In July and August : natural flow (more important). Rain and high temperatures (mostly at the beginning of summer) increase the volume of the torrent. After a storm, the flow can be very impressive. This is the time of wild gorges, the best time to measure the force of the waterfalls.

At the start of the walk


A gift shop : with many items of Diosaz souvenir and beautiful old black and white postcards.




The waterfall’s snackbar : provide refreshments, paninis and ice creams on a quiet sunny terrace. If you wish, by taking a consumer, you can alos sit there and enjoy your own picnic.

Why an entrance fee ?

This canyon is accessible only thanks to a footpath made up of many gateways and bridges. The original philosophy of Achilles Cazin (founder of the gorges) was: «to allow everyone to access the heart of the gorge to the most modest price possible»


Since 1875 the small company Gorges Diosaz strives for the best this profession of faith while improving the sustainability and security of the site. Each year, 3 months of maintenance work are required to check or redo the path destroyed by the elements, secure the cliffs and finally keep this route open.

Things to visit close to the Diosaz

Approximately 300m away you’ll find:

The Maison de l’alpage (Servoz Tourist Office) proposes some beautiful walks in the vicinity (such as the tour St Michel) as well as different exhibitions each year, in collaboration with the association “Servoz Histoire et Traditions”. 


There is also: the baroque style church of St Loup dating back to 1537; the church tower from 1746 with the portal representing St Loup fighting a dragon; 14 oratories and the oval stained glass window with its four evangelists.


In the neighbourhood:


The snack bar of the "Les Bossons glacier"

The Lac Vert (green lake)

The St Bernard breeding kennels

The Merlet animal park