Lake Dasiou is located at the NW base of mountain Killini , which has an altitude of 1480 meters. It is 2.5 km away from the sports center of Ziria and 8.5 km from Ano Trikala
It is a natural lake which in winter is created by concentrations of water on the plateau of Ζireia and in summer is transformed into a lush meadow.
The lake transforms into an endless ice rink in winter due to low temperature.
The rich biodiversity around the lake, the plateau and the valley of Flampouritsas have entered the region in NATURA as part with particular interest to be protected.