An outdoor excursion of choice in summer for Cluj-Napoca residents, Lake Tarnița is a water reservoir created by the Tarnița Dam in 1974. An easy 20 minutes west of the city, the reservoir is 215 hectares in size and twists between tall hills that have a mantle of forest.
You can enquire locally about activities on the lake, which include boating, jet-skiing and fishing, or you could just pack a picnic and spend a carefree few hours on the shore on a warm day, taking a occasional dip in the cool water.