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Lac de Grand-Lieu

Loire-Atlantique, France

Lac de Grand-Lieu ([lak də gʁɑ̃.ljø], Breton: Lenn Lec'h Bras) is a lake located to the southwest of Nantes, in the Loire-Atlantique, France, and almost entirely in Saint-Philbert-de-Grand-Lieu. At an elevation of 5 m (16 ft), its surface area is 62.92 km2 (24.29 mi2), making it the largest lake in France in winter, but second after Lac du Bourget in summer. The lake is classified as a Local Nature Reserve, and use of boats on the lake is prohibited for all but a small number of licensed professional fishermen.

NatureReserve data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).

Other nature-reserves in France