The reserve is one of the few remaining wetland areas on the shores of Lake Annecy, which has otherwise been heavily urbanized.
Beaver activity is actively monitored within the reserve, and visitors may spot gnawed wood or dams along the river banks.
The ruins of the Tour de Beauvivier were once part of a fortified house belonging to the lords of Duoussard.
The wetland filters water entering Lake Annecy, significantly contributing to the lake's reputation as one of the cleanest in Europe.
The site hosts specific botanical species adapted to humid conditions, such as the Great Fen-sedge (Cladium mariscus).
The reserve is part of a broader network of protected sites across the Alps dedicated to preserving cross-border biodiversity.
The Réserve naturelle nationale du Bout du Lac d'Annecy is a protected wetland located at the southern tip of Lake Annecy in the Haute-Savoie region of France. It serves as an ecological buffer zone where the Ire and Eau Morte rivers flow into the lake, creating a diverse marshland habitat. The reserve spans approximately 80 hectares and features a network of gravel paths and elevated wooden boardwalks designed to protect the fragile ecosystem. It acts as a critical sanctuary for migratory birds, amphibians, and beavers. Historically, the site includes the ruins of the 13th-century Château de Ruphy, also known as the Tour de Beauvivier, which is integrated into the trail system. The terrain is largely flat, consisting of alluvial plains that undergo seasonal flooding. It is managed by the Conservatoire d'espaces naturels de Haute-Savoie to maintain biodiversity and control invasive species.
The elevated viewing deck overlooking the reed beds near the river mouth.
Bring binoculars to observe bird species in the marshland areas.
Use insect repellent, as the humid environment attracts mosquitoes during summer months.
Stick strictly to the marked paths to avoid disturbing nesting sites and to prevent personal injury in muddy areas.
Stepping off the marked boardwalks and gravel paths, which can damage the sensitive marsh ecology.
Dogs must be kept on a leash at all times; picking flowers or disturbing vegetation is strictly prohibited.
