Puruvesi, South Savo, Regional State Administrative Agency for Eastern Finland, Mainland Finland, Finland
Lake Puruvesi, nestled in Eastern Finland, is a striking freshwater body forming part of the expansive Saimaa lake system. It is uniquely situated within the municipalities of Kerimäki, Kesälahti, and Punkaharju. The lake’s connection to the Pihlajavesi sub-lake system to the south adds to its intricate and captivating geography.
Covering an area of 420.86 square kilometers, Puruvesi is remarkable for its size and the depth that plunges to about 61 meters at its deepest point. The average depth, however, hovers around 8.76 meters. The lake’s expanse is accentuated by a shoreline stretching up to 923.97 kilometers and dotted with approximately 720 islands, each contributing to its diverse and vibrant ecosystem.
One of the most notable features of Lake Puruvesi is its exceptionally clear water. The underwater visibility in this lake is phenomenal for Finnish standards, often reaching 6 to 10 meters on calm and sunny days. This clarity is not just a boon for visitors seeking a picturesque view but also enhances the experience of divers and naturalists exploring its underwater treasures.
Puruvesi has recently gained attention for the resurgence of the Saimaa Ringed Seal, an endangered freshwater seal species. This species’ presence in the lake is a testament to the water’s purity and the success of conservation efforts in the region. Sightings of these rare seals have been frequent since 2006, with evidence of them wintering and breeding in the eastern parts of the lake.
The lake’s distinct open areas such as Hummonselkä, Pajuselkä, Sammalselkä, Mustanselkä, and Ruosteselkä, contribute to its allure, making it a preferred destination for various recreational activities. From fishing to boating and wildlife viewing, Lake Puruvesi offers a serene escape into nature’s embrace.