Located among spruce forests, Lake Synevyr is the largest natural water body in the Ukrainian Carpathians. Three permanent mountain streams flow into the lake, causing accelerated silting in those places and transforming the inflows into eutrophic marshes. The lake features floating vegetation including different species of Potamogeton pondweed and shoreline stands of Glyceria fluitans, Equisetum palustre and Mentha piperita. The water level and extent of the lake follow a seasonal pattern. The Site is important for many species listed in the Red Data Book of Ukraine, such as the Aesculapian snake (Zamenis longissimus), the European crayfish (Astacus astacus) and the lesser spotted eagle (Clanga pomarina). Human activities include regulated recreation, scientific research and nature conservation; the lake is associated with local legends and is widely popular as a symbol of the Ukrainian Carpathians, while offering great environmental and educational value.