Stifluvatn is a lake in the Stífla valley in Northwest Iceland, inland from the coast between Siglufjörður and Ólafsfjörður. Steep slopes drop to both shores, and the road that follows the water forms the long, little-used link between the two towns. The draw is the valley itself: the dark water, the slopes above it and the emptiness of the road. In winter the lake freezes from shore to shore.
Stifluvatn Lake
Local name: Stífluvatn

Stifluvatn drowned a valley: the water fills the floor of Stífla, flooded when the Fljótaá was dammed for the Skeiðsfoss power station.
What makes it special
The road is the reason to come, more than the lake alone. Stifluvatn sits on the long way round between Siglufjörður and Ólafsfjörður. That road is slower and rougher than the direct one, and less used. You can drive the whole of it and meet only a few cars.
The lake fills the floor of the Stífla valley. Steep slopes drop to both shores and the water runs dark beneath them. In winter it freezes over and the valley flattens into one white surface. Photographs undersell the place — the scale of the valley does not carry across.
Good to know
- Four-wheel drive: the road to the lake needs a 4x4, not a low two-wheel-drive hire car.
- The long way round: this is the slow, rough link between Siglufjörður and Ólafsfjörður, not the quick one.
- Traffic: the route stays quiet even in high summer. A few cars over the whole drive is normal.
- Winter: the lake freezes over, and the ice is the reason to make the detour in the cold months.
Getting there
Stifluvatn is reached by car, and the drive is most of the visit. The road past the lake forms part of the long link between Siglufjörður and Ólafsfjörður, and the water is in view from the road. Drive the whole stretch rather than turning back at the lake. The run through the valley is what people take this road for.
Best time to visit
Best: summer, for long daylight and a valley green down to the waterline. Or the frozen months, when the lake ices over.
Avoid: low cloud and heavy rain. Stifluvatn is scenery and nothing else, and with the slopes hidden there is nothing left to see.
The lake changes more between seasons than through the day: dark water under steep sides in summer, a single flat white surface once the ice sets.
Sun & daylight
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Frequently asked questions
Do you need a 4x4 to reach Stifluvatn?
Yes. The road to the lake calls for four-wheel drive, and it is worth driving its full length rather than turning back at the water.How busy does Stifluvatn get?
It stays quiet. The road past the lake is the less-used link between Siglufjörður and Ólafsfjörður, and a few cars over the whole drive is normal, even in July.Is Stifluvatn worth seeing in winter?
The lake freezes over in winter, and the ice changes the valley completely. That is what brings people here in the cold months.Where is Stifluvatn?
In the Stífla valley in Northwest Iceland, inland from the coast, on the long road between Siglufjörður and Ólafsfjörður.








