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 Inari 3,000 islands in total. Trout, lake salmon, Arctic char, white fish, grayling, perch and pike are found in Lake Inari. The lake covers . It empties northwards through the Paatsjoki at the mouth of the Varangerfjord, which is a bay of Barents Sea. Philip Pullman, author of the "His Dark Materials" book series, chose this lake to be the home of the witch Serafina Pekkala. The lake depression is a graben bounded by faults active in the Cenozoic. Lake Inari Lake Inari (, , , , , ) is the largest lake in Sápmi and the third-largest lake in Finland.