The shape of Lake Onega is reminiscent of a lobster with only one claw. Covering an area of 10,000 sq. km, it is the second largest lake in Europe. The average depth is 30 m, but parts of the lake are 120 m deep. More than 50 rivers feed it, but only one – the Svir – originates from it. There are more than 1,300 islands in the lake, mostly in the north, where there are many pinewoods on the edges of the rocky fissured shores. In the middle and the southern areas, where sandy shores merge with shallow bays full of sedge, we mostly find lime and edge trees.
Nature and wildlife contribute to the attraction of the Onega region. There are more than 40 types of fish in the lake including salmon and trout. The trout stocks were bred artificially using fish from Lake Sevan in Armenia. Although the lake water has a brown tint, it is very clean and has a high mineral content. The northern location explains the severe climate. Frequent storms give rise to waves of up to 5 m.