Fig. 21: Although Lake Klöntal is only about 850 meters above sea level, it freezes often because it doesn't get sunlight during the winter months. It's easy to access and therefore suitable for ice diving. DiveZone ice diving event, Lake Klöntal. Nikon D3; Δt=1/500 s; f=28 mm; f/11.0; ISO 200; 1 March 2014 11:56:06
