A rare natural phenomenon turns one of Austria’s most beautiful hiking trails into a 10 meter-deep lake, for half the year. Located at the foot of the Hochschwab Mountains, in Tragoess, Styria, Green Lake is one of the most bizarre natural phenomena

A rare natural phenomenon turns one of Austria’s most beautiful hiking trails into a 10 meter-deep lake, for half the year. Located at the foot of the Hochschwab Mountains, in Tragoess, Styria, Green Lake is one of the most bizarre natural phenomena

A rare natural phenomenon turns one of Austria’s most beautiful hiking trails