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
Chandos Lake River, and Lake Ontario. Chandos is the largest lake in the Crowe River watershed. Chandos Lake measures 1,387 hectares and has a maximum depth of 48 metres. Chandos Lake was originally called Mongosogan by the Mississauga Anishinabe, on whose traditional territory it lies. Although not one of the Kawartha Lakes proper, Chandos Lake is part of the Kawartha cottage country; the lake is lined with some 1,200 cottages. The lake features three marinas and a public beach. The towns of Apsley, Glen Alda, and Lasswade are located on or near the lake. County Roads 620 and 504 encircle the lake.