

Description
A magnificent lake isolated in our mountain pastures.
For more detailed information guide service office hours at the Tourism Office (Maison du Tourisme) are from 6 pm to 7 pm, in July and August.
Lake Lessy is part of the Natura 2000 programme, which aims to protect remarkable environments.
In terms of plant life, the lake is home to a very large population of alpine pondweed and a smaller population of thorny buttercup. In terms of amphibians, the lake has a colony of Alpine newts.
In this context, swimming is strictly prohibited.
The following are also strictly prohibited:
- Camping (by municipal ordinance throughout the entire municipality of Glières Val de Borne).
- Campfires and outdoor fires, the use of stoves and barbecues.
- Drones.
- Slacklines.
Fishing is permitted: 1 catch per day per fisherman, single barbless hook, natural bait or fly only. River permits are available for purchase at the Grand-Bornand Tourist Office.
Booking
Accessibility
Hearing disability
Visual disability
Rates
From 20 June 2026 to 28 August 2026
From 20 June 2026 to 28 August 2026
Adult
€48.00
Child
€32.00
Payment methods
Bank/credit card
Check
Travellers Cheque
Cash
Credit transferGroups (Max capacity)
Groups (Max capacity)
- 9 Maximum number of people
Accepted customers
- Walkers/hikers
- Groups
- Minimum age (in years) : 7
Openings
From 20 June 2026 until 28 August 2026
From 20 June 2026 until 28 August 2026
Tuesday
09:00 - 16:00
Location
Plan interactif : 1 lieux répertoriés.
- Lieu sans nom
Spoken languages
Spoken languages
Environment
Environment
- Lakeside or by stretch of water
- Riverside
- Forest location
- Lakeside or by stretch of water
- Mountain location
- Isolated
- Lake -5km away
- River -5 km away
- Close to GR footpath






