Lake Riza in Abkhazia.

http://komotoz.ru/photo/priroda/ozero_rica.php

High in the mountains of the Caucasus, in the gorge is Lake Rizza. This landmark is very popular. The water in the lake is so transparent that you can easily see the bottom. All who visited this lake bring home magnificent photos of this lake of unprecedented beauty.

Thanks for the support in my messages.@magnata