Lake Peipus Lake Peipus Lake Peipus (; ; ) is the largest transboundary lake in Europe, lies on the border between Estonia and Russia. The lake is the fifth-largest in Europe after Lake Ladoga and Lake Onega (in Russia north of St. Petersburg), Lake Vänern (in Sweden), and Lake Saimaa (in Finland). Lake Peipus represents a remnant of a body of water which existed in this area during an Ice Age. It covers , and has an average depth of , the deepest point being . The lake has several islands and consists of 3 parts: The lake is used for fishing
Lake Sils It is also the largest natural lake in the Alps lying above 1,000 metres. The lake was formed by a prehistoric landslide dam, similarly to Lake Silvaplana. The wooded Chastè peninsula extends into the lake at its north-eastern end. At the end of the peninsula there is a plaque to Friedrich Nietzsche with a passage from "Thus Spoke Zarathustra". Near the peninsula is located the wooded island of Chaviolas, the largest in Lake Sils. Annually, in winter, the cross-country Engadin Skimarathon crosses the lake, starting at its edge in the Maloja Palace. Boat connections run from end of June to