Description
Starting from Le Grand-Bornand Chinaillon, a 2.5 hour loop during which 11 interpretive signs explain the different facets of the mountain environment: flora, fauna, habitat, geology, ...
Beware of storms on the ridge.
Alternative route possible to complete a loop with a return via the chalets of Mayse, Le Planay and the old village (elevation gain 1,100 m and 6½ hours).
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.
Services
From 15/06 to 15/11 daily.
From spring to autumn, depending on snow and weather conditions. Inquire about conditions before heading out. You are responsible for your own safety.
Subject to favorable weather.
From spring to autumn, depending on snow and weather conditions. Inquire about conditions before heading out. You are responsible for your own safety.
Subject to favorable weather.
