The Dunggellauifall is a low volume waterfall at the Klöntalersee, located near Glarus, Switzerland.
From Glarus drive to Riedern and the Klöntalersee. Halfway the lake you can see the Dunggellauifall at the opposite side of the lake falling down in a single drop over 70 meter. There is a small parking along the lake (gps 47.026104, 8.969974). I am not sure if you can see the waterfall from here or if you have to walk a little back.