Background Lake Constance
Lake Constance is the second largest freshwater lake in Central Europe.
3.9 million people live, work and relax in the Lake Constance region covering an area of about 12,500 square kilometres. 4.5 million people drink Lake Constance water, and up to 50,000 boats are based on the lake.
In spite of a wide variety of human activities, Lake Constance has preserved a natural landscape with rich biological diversity. About 200,000 water birds rest or hibernate in the region. These include about 80,000 Tufted Ducks, 50,000 Pochards, and 7,000 Great Crested Grebes. The water of Lake Constance is teeming with fish - 26 different species live there.