The Oresteia lake is not well known by tourists who come to Greece, but I am convinced that all who visit the place do not forget it easily, especially if they have been lucky enough to enjoy a sunset. It is surrounded by the city of Kastoria and great mountains that seem to protect it against everything. The lake water is clean and quiet and always has several small boats for adornment. There are small boats for fishing and some (very few) devote their evening to try to catch fish in these waters. Other boats give rides to tourists for a small fee (I think it was 4 euros per hour). If taking in the sights of the place, observe the many birds there.