Sartai

Lake Sartai is located in Rokiškis and Zarasai municipalities, northeastern Lithuania. The lake's 79 km shoreline is the longest in Lithuania. There are six islands in the lake. River Šventoji flows through it.

Lake Sartai
Location	Rokiškis and Zarasai
Coordinates	55°48′51″N 25°49′10″E
Primary inflows	Šventoji
Primary outflows	Šventoji
Basin countries	Lithuania
Surface area	13.32 km2 (5.14 sq mi)
Max. depth	20.9 m (69 ft)
Shore length1	79 km (49 mi)
Islands	6
1 Shore length is not a well-defined measure.

The lake was famous for the annual horse races that had been organized on the frozen lake near Dusetos. Nowadays this tradition is abandoned because of safety requirements. The race is organised at a hippodrome on the shore of the Sartai Lake.