Almost 15 km long, Lake Annecy stretches between the Bornes mountains to the east (the Tournette, Mont Veyrier) and the Semnoz to the west. At its northern end lie Annecy’s old town and its canals; at the southern end, the Petit Lac (the smaller southern basin) and the Bout du Lac nature reserve. The Duingt peninsula separates the two basins.
Its water is among the cleanest of the large Alpine lakes: as early as 1957, the lakeside towns joined forces to stop the pollution. You can swim from beaches that are often grassy, cycle around it on a voie verte (a traffic-free greenway), take a cruise, and climb to the viewpoints of Mont Veyrier, the Taillefer or the Col de la Forclaz, where paragliders take off.
Your questionsLake Annecy: frequently asked questions
Where can you swim in Lake Annecy?
At the public beaches, which are often grassy: some are free (Albigny, Marquisats, Doussard), others charge in summer (Impérial, Menthon, Saint-Jorioz). Lifeguards are only on duty in July and August, in the zones marked by yellow spherical buoys.
How warm is the water in Lake Annecy?
On average 6 °C in January and 22 °C in July, according to the DDT, the French state’s planning office in Haute-Savoie. AlpeSnow does not show a live reading of the water temperature.
How long is the bike ride around Lake Annecy?
About 40 km with 300 m of climbing, on the west-shore greenway and the east-shore cycle route. Until 18 December 2026, the road and the greenway are closed at Talloires for roadworks.
Can you jet ski on Lake Annecy?
No. Jet skis, towed inflatables and parasailing are banned. The speed limit is 50 km/h by day, 25 km/h at night and 5 km/h near the shore.
How do you get to Lake Annecy without a car?
By train to Annecy station (TGV from Paris, TER regional trains, Léman Express from Geneva), then by Sibra bus: line 15 for the west shore, line 20 for the east shore. In summer, Mobil’été adds extra buses and free park-and-ride car parks.