Gruner See (Green Lake) is a lake in Styria, Austria known for its shimmering, emerald-green hue and its fluctuating depth throughout the year, at times leaving a park completely submerged in it. The site has proven to be an attraction for divers.
I check this, it was awesome Plitvice Lakes National Park, Croatia : Most beautiful place in the world.
Two exquisite glacier lakes glitter in the green valleys of the Slovenian Alps. We will visit Bled, resort with an eminent medieval castle and a romantic island in the lake and Lake Bohinj lies in a tranquil valley of Triglav National Park.