Panorama Photo

SOLVED RIDDLE.
The Cornino lake is a small lake located in the province of Udine, within the natural reserve of the Cornino lake.
The lake has no emissaries or tributaries, but receives a continuous water exchange from the underground aquifers, which allow it to maintain a constant temperature between 8 and 9°C throughout the year, as well as a characteristic clarity of the water. . The characteristic color of the lake is due to the presence of natural algae.