The lake was created in 1963 following the construction of the Monteynard Dam to power a hydroelectric plant.
The two suspension footbridges are among the longest of their kind in Europe, each spanning over 200 meters.
The lake's water level fluctuates significantly throughout the year due to hydroelectric production requirements.
The site is designated as a protected natural area, requiring careful adherence to waste disposal rules.
Thermal winds in the canyon are so reliable that the lake is considered a premier spot for high-level wind sports in Europe.
The SIVOM du Lac de Monteynard manages the infrastructure for the 20-kilometer-long hydroelectric reservoir located in the French Alps. The site is world-renowned for two Himalayan-style footbridges, the Drac and the Ebron, which suspend travelers above the water. These bridges connect the municipalities of Treffort and Mayres-Savel, allowing for circular hiking and mountain biking loops. The reservoir is a primary destination for windsurfing and kitesurfing due to consistent thermal winds known as 'la brise'. The managing body oversees the environmental protection and public access to the lake's banks. The landscape features deep canyons and steep cliff sides characteristic of the Trièves and Matheysine regions. It functions as a multipurpose hub for water-based recreation and high-altitude trekking.
The center of the Ebron footbridge provides a clear vertical view of the canyon and water below.
Bring a windbreaker even in summer, as the canyon funnels cool air currents.
Check the wind forecast before planning water sports, as conditions can change rapidly.
Ensure your footwear is suitable for steep, rocky hiking trails when accessing the footbridges.
Do not attempt to cross the footbridges during high-wind events; avoid visiting during peak summer weekends if seeking solitude.
Pedestrian and cycle access to the footbridges is typically open from spring through late autumn, depending on snow levels and maintenance.
Respect protected natural zones; do not leave trails; observe all water safety warnings.
