The real life Svetloe Lake located near Urozhainoe village which means “Prolific” in Siberia is also known to many locals as the Swan Lake which uniqueness is that water never freezes, no matter how cold the winter. In winter the Lake is usually teeming with activity and you found it most beautiful lake in world as hundreds of beautiful swans arrive here to enjoy warm water of this lake, swans generally select to fly further south where the climate isn’t so harsh. Svetloe Lake is so special, because it is fed by many warm springs, as the temperature of water is always above zero, although surroundings air drops to minus 40c. The lake waters is warm in comparison, in between 5C to 6C, making it the unspoiled hang-out place for the beautiful birds.
The swans started to appear at the lake way back in 1967. Only about 15 birds would make an appearance then, but the numbers have steadily increased to over 350 today and still continue to rise. The name “Svetloe” actually means “Clear Lake” and the waters are pristine and so transparent even though you can see all the way down to its depths. The people of nearby village are arrogant to have the breathtaking swan lake and treat the species with massive care and respect, and in return have the most rewarding swan songs the birds is famed for its deep honking call and relish the watching them fly. As per locals, only 15 birds were appeared in 1967, but now quantity has grown up to 350 annually with the numbers rising every year.
The birds leave for nesting to the northern polar areas of Siberia in March, and come back here with their young some nine months later. Whooper Swans are extra cautious birds. They need calm and quiet, so the access of people to the lake to see this remarkable sight is limited. There is a special viewing point ten meters high with a panoramic view of the lake, built in a way that it doesn't disturb the birds. There are also more than a few floats designed especially for feeding the swans which permits you to see these remarkable birds from a closer distance. Almost 2,000 ducks also spend the coldest months with the swans which include the Mallard, the Goldeneye, the Redhead and the Tufted ducks, two kinds of Teals and Northern Pintails. Source; Charismatic Planet