Wikipedia
Lagarfljót
Lagarfljót (also called Lögurinn) is a lake situated in the east of Iceland near Egilsstaðir. Its surface measures and it is long; its greatest width is and its greatest depth . The River Lagarfljót flows through this lake.
The biggest forest in Iceland, Hallormsstaðaskógur is found near the lake as well as a waterfall, Hengifoss. Hengifoss, at , is one of the tallest waterfalls in the country. Below it is another waterfall called Litlanesfoss.
As with the Scottish lake Loch Ness, a cryptid serpent, called Lagarfljótsormurinn by locals, is believed by some to live in the depths of Lagarfljót.