The River Viesite is a tributary on the right bank of the river Mēmele flowing through the counties of Viesīte, Jaunjelgava and Nereta. It takes its beginning from Lake Viesīte and it runs mostly along the plain of Taurkalne.
Its basin is rich in forests and marshes, there are meadows in the floodplains. The upstream of the river up to the highway P86 is regulated. In the lower reaches of the river there are 7-9 m high cliffs. The river Viesīte flows into the river Mēmele at Krasti.
It is available for boating during the periods of much water. The river to boil in many water periods. A lot of trees fallen into the river can convert your boating into a boat hiking.