Our planet is a wonderful place and there are countless gems like the Plitvice Lakes National Park in Croatia, for us to appreciate and preserve. The Plitvice Lakes National Park was granted UNESCO World Heritage status in
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.