�� Nisser

Nisser is a lake in Telemark county, Norway. It is located in Nissedal Municipality and Kviteseid Municipality. This is Telemark's largest lake and also the 10th-largest lake by area in Norway, with a surface area of 76.07 km2 (29.37 sq mi). It's also the 8th largest lake by volume at 7.074 km3 (1.697 cu mi). It is also the 16th deepest lake at 234 m (768 ft). Nisser has the greatest average depth of the Norwegian lakes that is not a cryptodepression. Its entire lake basin is located above sea level. As part of the Arendal watershed, water enters this lake from the discharge from the nearby lake Vråvatn, and its outlet is the Nisserelva river which later becomes part of the river Nidelva.