Cyanobacteria in Bathing Waters

Bathing water quality in the Landes is subject to rigorous monitoring. One of the key phenomena under close observation is the proliferation of cyanobacteria. Naturally present in lakes, these microorganisms can pose a health risk when their concentration becomes too high. To ensure public safety, the Syndicat Mixte de Gestion des Baignades Landaises (SMGBL) provides real-time updates on the situation and current alert levels. You’ll find here the essential precautions to take and the official guidelines to follow during periods of heightened vigilance.