
1) lake in Iceland
Found on
https://www.crosswordclues.com/clue/hvalvatn

The lake Hvalvatn is situated some kilometers to the east of Hvalfjörður in the western portion of Iceland. It lies to the east of the volcano Hvalfell. The surface measures 4.1 km², and its greatest depth is 180 m. Not far from Hvalvatn, the highest waterfall in the country, Glymur is located. Hiking trails lead to the lake and the waterfall. ...
Found on
http://en.wikipedia.org/wiki/Hvalvatn
No exact match found.