At the bottom of the Osa fjord there is a cultural landscape marked by great contrasts; the wide terraces and the river delta at the fjord contrast with the steep hillsides in the background, where Norddalen leads up to the mountain. There are two farms here. Osa and Sævartveit – the farm at the river mouth and the hollow by the sea.
Solskinstjørni in Osa, just above Haugen farm in Norddalen, is visible only now and again, seemingly always for a period of good weather. Then it disappears abruptly, but its disappearance is not connected to weather conditions.