Sitting at the foot of snow-capped Hochschwab mountains and during the frozen winter months, the park is almost completely dry.
But come spring, when the snow melts, the park turns into a lake with emerald green waters!
By June, it’s a perfect place to dive and be captivated by the unique scenery: benches, grass and fish swimming among the trees!
Read more here: http://scubadiverlife.com/2014/09/26/dive-site-gruner-see-green-lake-Austria/