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Ferstad
Ferstad is well worth a visit. The farm lies on a little hillock south of Lekven: a beautiful official residence from the 1700s.
Gåssand
The 28th November 1914 was a day to remember for the Os inhabitants. This was the day they could turn the switch on the wall and have electric light in their houses. It was like opening the door on the future when the power station at Gåssand was put into operation.
Ulvenvatnet
Lake Ulvenvatnet is thought to be the most species rich wetlands in the municipality. Despite this, the area is not protected, nor is it likely ever to be.