Yövesi (; literally "night water") is a sub-lake of the lake

Saimaa Saimaa ( , ; sv, Saimen) is a lake located in the Finnish Lakeland area in southeastern Finland. At approximately , it is the largest lake in Finland, and the fourth largest natural freshwater lake in Europe. The name Saimaa likely comes from a ...

in eastern

Finland Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of B ...

. It is located in

Mikkeli Mikkeli (; sv, S:t Michel; la, Michaelia) is a town and municipality in Finland. It is located in what used to be the province of Eastern Finland and is part of the Etelä-Savo region. The municipality has a population of () (around 34,000 i ...

municipality in the

Southern Savonia South Savo (or Southern Savonia; fi, Etelä-Savo; sv, Södra Savolax) is a region in the south-east of Finland. It borders the regions of North Savo, North Karelia, South Karelia, Kymenlaakso, Päijät-Häme, and Central Finland. The total area ...

region. Part of the

lake system, it borders on the system of Pihlajavesi to the east. The deepest point of the whole Saimaa is in Yövesi, in Käenniemenselkä open area. The

Astuvansalmi rock paintings The Astuvansalmi rock paintings ( fi, Astuvansalmen kalliomaalaukset) are located in Ristiina, Mikkeli, Southern Savonia, Finland at the shores of the lake Yövesi, which is a part of the large lake Saimaa. The paintings are 7.7 to 11.8 metres ab ...

are situated in the northern shore of Yövesi. The critically endangered fish

Arctic char The Arctic char or Arctic charr (''Salvelinus alpinus'') is a cold-water fish in the family Salmonidae, native to alpine lakes and arctic and subarctic coastal waters. Its distribution is Circumpolar North. It spawns in freshwater and populatio ...

lives in Yövesi. Fishing of Arctic char is totally prohibited.

References

Saimaa Lakes of Mikkeli {{EasternFinland-geo-stub