NATURAL CONDITIONS
The coastline, more than 30 km long, is overgrown with reeds, reeds and sedges. Near the shores the water is partially covered with duckweed and water lilies. The shores themselves are indistinctly outlined - sands, chalk marl and limestone give them originality and uniqueness. Pines with birches, hornbeams, oaks sometimes approach the water itself. Pebbles and boulders sometimes occur along the shores, some areas are swampy. There are bays - the largest Buzhnya and Luka.
The lake is rich in benthos, fish (eel, bream, perch, pike, catfish), waterfowl; conditions contribute to the breeding of fur animals.
Svityaz receives an average of 543 mm of precipitation per year. The rainiest year of 1974 was 843.6 mm. Svityaz feeds mainly on groundwater and atmospheric water.