Lake bathing water · France
Grand Lac de Clairvaux
Grand Lac de Clairvaux is officially classified Excellent for the 2025 bathing season. Rated Excellent in every one of the last 11 classified seasons.
Classification history, 2015–2025
The EU Bathing Water Directive classifies each designated bathing water once a year from four seasons of E. coli and intestinal enterococci samples. One season is a snapshot; the run below is the pattern.
| Season | Official classification |
|---|---|
| 2025 | Excellent |
| 2024 | Excellent |
| 2023 | Excellent |
| 2022 | Excellent |
| 2021 | Excellent |
| 2020 | Excellent |
| 2019 | Excellent |
| 2018 | Excellent |
| 2017 | Excellent |
| 2016 | Excellent |
| 2015 | Excellent |
What this rating covers
This is the official classification published by France under the EU Bathing Water Directive (2006/7/EC). It reflects measured bacteriological levels — E. coli and intestinal enterococci — over four bathing seasons. It is not a safety clearance, and it does not cover algal blooms, nutrients, water clarity or hazards such as currents and depth. Conditions change after heavy rain. Always check local signage and the operator’s current notices before entering the water.
Official national bathing water profile for Grand Lac de Clairvaux
Other bathing waters near Grand Lac de Clairvaux
- Surchauffant - Lac de Vouglans · Excellent
- Doucier - Lac de Chalain · Excellent
- Domaine de Chalain - Lac de Chalain · Excellent
- Mercantine - Lac de Vouglans · Excellent
- Bellecin - Lac de Vouglans · Excellent
- Lac de Lamoura · Excellent
- Lac des Rousses · Excellent
- Graviere de Desnes · Excellent