Grenant Canyon:
the slides of Chartreuse
At the gateway to the Chartreuse Park, near Lake Aiguebelette. An easy, playful canyon carved into limestone: natural slides, small caves to explore and an 18 m waterfall. One of the first to open each season.
Slides, caves and a long season
The Grenant canyon sits at the gateway to the Chartreuse Regional Nature Park, very close to Lake Aiguebelette, between Attignat-Oncin and La Bridoire. It is an easy, playful canyon, perfect for families and groups of friends seeking fun without big verticality.
Its hallmark: the limestone rock has been sculpted into smooth natural slides, dotted with small caves you pass through along the way. The atmosphere is immersive and green, in an unspoilt natural setting.
Another asset: it has one of the longest seasons in the area â it opens in early April and stays runnable until late September. Ideal when other canyons are still too high in water.
Slide, swim, explore the caves
The Grenant is above all a series of natural slides carved into polished limestone â you glide from pool to pool through clear water, never with major technical difficulty.
Between slides, the canyon reveals small caves and submerged passages to explore, adding an adventure dimension much loved by children. The full version even offers a fine 18 metre waterfall and jumps up to 7 metres, always optional.
It is the fun canyon par excellence: sporty enough to enjoy, gentle enough to share as a family, and long enough to make the most of a half-day.
waterfall
(optional)
opening
Your outing, step by step
From welcome to return, here is how the descent goes.
Welcome & gear
The guide kits you out (wetsuit, helmet, harness), presents the canyon and the safety rules, then adapts the route to the group and the participants' ages.
Approach walk
A gentle approach walk leads to the canyon entrance, in a wooded setting typical of the Chartreuse foothills.
Slides & caves
You string together the natural slides, swims through pools, small caves to pass through and, in the full version, the 18 m waterfall and optional jumps. A gentle, playful rhythm.
Return & debrief
Exit via an easy trail back to the start, gear returned and the outing photos shared.
What's included (and what's not)
All technical gear and supervision are included in the private outing.
Included in the outing
- Full neoprene wetsuit
- Certified helmet and harness
- Technical gear (ropes, descenders)
- Supervision by a state-certified guide
- Civil liability insurance
- Photos and videos of the outing
Not included (to bring)
- Swimwear (worn under the wetsuit)
- An old pair of trainers
- Towel and change of clothes
- Travel to the meeting point
- Tip for the guide (optional)
This outing is ideal if you are...
The Grenant Canyon as a private outing adapts to your group and level.
Slide lover
Prefer gliding to jumping? The Grenant is a string of natural limestone slides.
Family with children
From age 8, easy and playful: an ideal canyon to share the adventure with the youngest.
Curious explorer
The small caves and submerged passages bring a fun whiff of underground adventure.
Early-season outing
The Grenant opens in April: perfect when other canyons are still too high in water.
The Grenant Canyon at a glance
The descent's key features so you can picture it.
Everything to know before you come
The logistics to prepare your outing.
đ Meeting point
The meeting point, near Lake Aiguebelette, is confirmed when you book your private outing.
đ Access
- â 50 minutes from Annecy
- Close to Lake Aiguebelette
- Car-sharing possible depending on the group
đ Organisation
- Half-day outing
- â 4h30 total
- Morning or afternoon
- By private booking
â ïž Requirements
- Minimum age 8
- Able to swim
- Normal physical condition
- No experience required
A local, state-certified team
Since 1994 we have guided canyoning around Annecy and Savoie.
State-certified guides
CĂ©line, Ătienne and Vincent know every canyon in the area and adapt the outing to your group.
Safety first
Certified gear, checked landing pools, an alternative at every obstacle: your safety comes first.
Tailor-made outing
Date, level, group size: we build your private outing around your wishes.
Your questions about the Grenant Canyon
Answers to the most common questions about this outing.
Is the Grenant suitable for children?
When is the canyon runnable?
Are there really caves?
Do I need to jump from height?
How do I book?
Discover our other descents
From family canyons to the sportiest, around Annecy and in Savoie.
Fancy descending the Grenant Canyon?
This outing is run as a private group, guided by a state-certified instructor. Contact us to set your date and format.