Gruner See, Styria: A Park That Turns Into a Lake in SummerGruner See, Styria: A Park That Turns Into a Lake in Summer Grüner See, literally “Green Lake”, is a lake in Styria, Austria, near the town of Tragoss, located at the foot of the snow-capped Hochschwab mountains. During winter, the lake is only 1–2 meter deep and the surrounding area is used as a county park. It is a particular favourite site for hikers. But as the temperature starts rising in spr
