A map published recently by the Commission internationale pour la protection des eaux du Léman (CIPEL), a Swiss-French intergovernmental organisation, rates the water quality at most Lake Geneva beaches as excellent or of a medium to good quality. Only one, Pointe-à-la-Bise – Collonge-Bellerive was rated as having water that is sometimes polluted.
The map above shows the water quality of most of the lake’s favorite bathing spots. The vast majority of beaches have water quality rated as excellent (marked in blue). Beaches missing out on an excellent rating include La Vaudaire – Lausanne, Le Parc Bourget – Lausanne, La Chamberonne / Dorigny – Saint-Sulpice, Plage de Gland, Creux-de-Genthod, Genthod, Le Vengeron aval – Bellevue, Plage de l’ONU – Genève, La Belotte – Cologny and Bellerive Débarcadère – Collonge-Bellerive. The three Geneva beaches of Port-Tunnel – Cologny, Tour-Carrée – Cologny and Plage des Eaux-Vives – Genève are awaiting ratings.