The lakes change their appearance depending on the time of year: covered with ice and snow in winter, with clear waters and surrounded by green after the thaw - the volume of water often drops considerably in summer. They are usually found above 2,000 m above sea level and are surrounded by a varied and beautiful landscape of meadows and mountain ridges. These lakes arose in the glacial era, when the Pyrenees were covered in ice. With cold, clear waters from the thaw, each one has its own blue colour, size and peculiarities.<\/p>\n\n\n\n