La Grande Plage

20.3°C Water temp · Sep 11

France Coastal 1 - Excellent 20.3°C

Satellite image of LA GRANDE PLAGE — Satellite image © Esri

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Water

Coastal bathing waters in Brittany, France. The area includes bays (Lancieux, Fresnaye, and Arguenon) with tidal characteristics and wave conditions typical of the Atlantic coast.

Location

Saint-Cast-le-Guildo, France. Five beaches are covered: Plage des Quatre Vaux, Plage de la Fosse, La Grande Plage, Plage de la Fresnaye, and Plage de Pen Guen.

Water Quality

Multiple monitoring networks assess water quality including bacteriological monitoring by ARS, shellfish harvesting zones monitored by REMI (IFREMER), and phytoplankton surveillance by REPHY (IFREMER). The profile is classified as Type 2, indicating vulnerability assessment has been conducted.

Risks

Macroalgae (ulves) proliferation potential identified in the study area. Non-collective sanitation systems present in the territory. Streams near beaches (Ruisseau du Pont Quinteux, Ruisseau du Kermiton, Ruisseau Pont Pourvois) discharge into bathing areas.