Park or Lake? Lake or Park?

This is Green Lake (Gruner See) located in Tragoess, Austria, which sits at the foot of snow-capped Hochschwab mountains. Through the frozen winter months the area is utilized as a county park and is completely dry.  It is a popular destinations for hikers during these dry month.   As the temperature increases in the spring, the snow melts into the basin below creating Green Lake.   The ice cold lake appears green in color secondary to the grass and foliage below the water.    The water, at peak, is over 30 feet deep in June.  By July,  the water begins to once again recede. Green lake is quite extraordinary as it's invaded by divers who are curious to see what a mountain park looks like underwater.  Fish can be seen swimming over wooden benches creating a surreal environment.  The bottom of the lake is covered in bright green grass.  Trees, roads and even a footbridge can be enjoyed almost as if they are on dry ground ;).   Just another interesting place to go for a SCUBA dive.