What is the cleanest lake in Europe for swimming?
Lac d’Annecy: the cleanest lake in Europe. Discover the breathtaking beauty of Lac d’Annecy, Europe’s cleanest lake. Your perfect destination for a refreshing getaway. Lake Annecy is reputed to be one of the purest lakes in Europe and, at 14. France’s second-largest glacial lake. Its many overhead and underground springs come from the surrounding mountains, and its water is filtered and enriched by the limestone rocks.
Which ocean is the saltiest?
But as in weather, where there are areas of high and low pressure, the ocean has areas of high and low salinity. Of the five ocean basins, the Atlantic Ocean is the saltiest. On average, there is a distinct decrease in salinity near the equator and at both poles, although for different reasons. The Baltic Sea in northern Europe has the lowest salinity of any sea, with an average salt concentration of 7–8 grams per kilogram of water (meaning that the water is 0.