1) Mountain lake 
The Wörthersee (Slovene: Vrbsko jezero) is an alpine lake in the southern Austrian state of Carinthia. ==General facts== The lake is elongated, about 20 km long and 1–2 km wide. It stretches from the Carinthian capital Klagenfurt in the east to Velden in the west. It is flanked to the north and south by steep alpine foothills covered with dense...