Mörtsjön is tucked away in the woods about 15 km northeast of Malung and is known among local anglers for its wild brown trout population. The lake features deep clear water and rocky shorelines, ideal for trout that feed close to the surface during evening hours, especially in summer.

The surroundings are completely natural and untouched, making Mörtsjön a perfect destination for those looking to fish in solitude. Shore fishing is possible from several rocky outcrops, but a rowing boat provides even better access to deeper areas.

Fly fishing, spinning, and bait fishing are all permitted with a valid fishing license. Due to its elevation and clear water, Mörtsjön is at its best during the early morning or late evening.