Travel: Austria's Green Lake in the Hochschwab Mountains is a hiking trail in the winter. The snow melts in early summer and creates a completely clear lake. The lake has a grassy bottom, complete with underwater trails, park benches, and bridges.
Snow melting off the side of the Matterhorn The Matterhorn, Monte Cervino or Mont Cervin, is a mountain in the Pennine Alps on the border between Switzerland and Italy. Its summit is meters high, making it one of the highest peaks in the Alps.