Pihlajavesi (Saimaa)
Pihlajavesi is a lake in Finland. The area of the lake is  making it the sixth largest lake in the country. Pihlajavesi is the second-largest basin in the complex Saimaa lake system. Pihlajavesi lacks large open lake areas but has more islands than any other lake in Finland. References

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Saimaa
Nature of Savonlinna