Ognian Voynikov
Google
Quite a unique lake, indeed. Its shore is very uneven, broken into small pockets from the numerous small peninsulas and islands. The vegetation is abundant and rich, with many birds enjoying the peaceful waters.
There are several viewpoint stops when driving around the lake. Each of them offers a unique perspective, so it's hard to rate them, though the ones on the south and the west seem more interesting.
A long path for pedestrians and for bikers surrounds the lake, making it ideal for short or long walks or rides.
When the Sun is up and shining, the waters turn their colors into beautiful turquoise and green shades, not visible on cloudy days.