Tsno

Lake Tsno is located in the Braslav District of the Vitebsk Region, 1.5 km east of Braslav, within Braslav Lakes National Park.

The lake covers 0.57 km² and reaches a maximum depth of 2.9 m (average 1.3 m). It is about 1.1 km long and up to 0.85 km wide. The basin slopes, 6–10 m high, are covered with dry forest and meadows; the lake has many small islands, the largest about 1.1 ha. In summer it becomes heavily overgrown.

The Druyka River flows through the lake. The next lake downstream on the Druyka is Drivyaty. Tsno is one of the park's lakes most visited by tourists. The lake belongs to the Braslav group: several dozen lakes with a combined area of about 130 km², linked by channels and small rivers, most of them in the Druyka basin.