What is "lygnern"

Lygnern is a lake in the municipalities of Kungsbacka and Mark, western Sweden. With an area of 33 km², it is the largest lake in Halland County. Its main outflow is Rolfsån, which in turn empties out into the Kungsbacka Fjord.

The lake serves as a source of drinking water for Kungsbacka. In 2006, it was nominated as the cleanest lake in Sweden, as 98% of the surveyed residents of the municipality were satisfied with the water quality.