Glattalpsee is located in the Canton of Schwyz. It also holds a record-breaking low temperature of -52.5°C making it an interesting spot for any thrill-seeker looking for an icy experience. A circular hike around the lake starts at the mountain station of the Sahli-Glattalp cable car - moderately challenging, 6.9km circular, 99m elevation gain, around 1h33min to complete.