Krutynia is a river of Masurian Lake District in Poland. It discharges into the lake , which is connected with Lake Roś through several canals and lakes. Roś is drained by the river Pisa. The Krutynia is one of the most famous waterways, repeatedly referred to the "most beautiful canoe trail in Europe". Current of the river, with numerous bends, is actually slow. Width of the river reaches 30–40 meters and depth is from 1,5-2,5 to 3–7 meters. The Krutynia flows through the landscape-water-forest reserve, in two municipalities terrain: Mikołajki and Ruciane-Nida. In the river are: * v * t * e