Lake Leman(Switzerland/France)

Lake Leman The biggest lake in Western Europe which touches its north side to Switzerland south side to France. The surface of this international lake is 583km2, it's a little bit smaller than Lake Biwa, but the depth is 310m which is about three times of its Lake Biwa. The source of the water mainly comes from the Alps and Rhone River, flows in to the Mediterranean Sea is the only outflow. Along the shore of the lake, there are tourist cities such as Geneva, Lousanne, and Montreux, and vineyards stretch around them. On the French side there is also Evian: famous for its mineral water. Inflow of household and agricultural efflvent is a problem and much efforts are made to improve the water quality as well as the conservation of the landscape. Studies of Forel, known as a father of modern limnology, are also important.