At the foot of the snow-capped mountains of Styria, emerald green waters lap at pine trees along the edge of the Green Lake. When Spring arrives, the snow melts away and fills the basin below with ice cold, crystal clear water. Below the surface of the lake lies one of natures most strange and beautiful phenomenon. During the colder months, the lake is a completely dry parkland, a favourite among hiking enthusiasts. When the summer months roll in, the rocky paths, roads, grassy knolls, park benches and bridges become submerged beneath the melted snow-caps. Hikers are replaced with scuba divers, wading their way through the surreal setting on the lake bed. The waters reach their peak in June, up to 10 meters, providing an experience unlike any other for the avid diver.