Submerged tree in the Green Lake. The Green Lake or Grüner See is a lake in Austria that dries out almost completely during fall, is used as a county park in the winter and is famous for the underwater park which forms during the spring due to snow melt
Grüner 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. Being that the water for the lake is provided mainly by runoff from the surrounding karst mountains, it is at its fullest (about 10 meters deeper than usual) in the spring after the sun has melted the snow off nearby glacial summits, which is typically sometime in June.
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