Lac des Garrets

The lake incurs the ramifications of its high altitude. The high level of evaporation in the summer sees it shrink, giving it the characteristic shape of a wine glass in autumn. The freezing weather which causes it to “hibernate” for nearly 8 months a year, would appear to prevent life from surviving in it. However, an energy-capturing phytoplankton began developing there, opening the way to life in the mountain lakes.Here, however, life halted at the plankton stage. The rare organic matter is used by an inactive lifeform. Given that the lake is “cleaned” in this fashion , the waters of this oligotrophic lake are clear, despite it being stagnant.