How is bathing water different from other lake measurements?

EU country pages classify designated bathing waters for bacteria (E. coli and intestinal enterococci). Other country pages show official phosphorus, chlorophyll-a, and Secchi from lake monitoring. They measure different things and are not converted into a LakeQuality A–F grade.

Why are there no A–F grades on some country pages?

The publishing authority does not issue a letter on the LakeQuality scale for these catalogs. Values are shown as measured. A letter would be a LakeQuality invention, not an official class.

Lake water quality by country

Official bathing-water classes for designated European lakes, and official surface phosphorus, chlorophyll-a, and Secchi for named lakes in 36 countries. These are not LakeQuality A–F grades.

Where to stay near lakes in these countries

Lakeside stays across Europe — open a country page for a local map and stays in Mexico, Japan, Australia, and the rest of the directory.

Top-rated places to stay near lakes in these countries

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Where to stay near lakes in these countries →