Foss a Sidu is a waterfall beside the Ring Road, Route 1, about 10 kilometres east of Kirkjubaejarklaustur in South Iceland. The waterfall is about 30 metres high. It is visible from the road, with a small pull-off nearby.
What and where Foss a Sidu is
Foss a Sidu stands beside the Ring Road in South Iceland. Its location is about 10 kilometres east of Kirkjubaejarklaustur, which places it directly along Route 1 rather than off on a separate access road.
The lake and cliff above the falls
The water drops from a small lake called Thorutjorn over a basalt cliff. A farm of the same name, Foss, sits at the foot of the cliff.
When the wind blows the water upward
The flow here is fairly light. In strong onshore winds, the falling water can be blown sideways or even back upward.
Seeing the waterfall from the Ring Road
Foss a Sidu is visible from the road. There is also a small pull-off nearby. For live road conditions, check road.is.
Foss a Sidu on a south coast drive
Foss a Sidu is on the South Iceland stretch of Route 1, so it fits naturally into a drive along this part of the country. If you want to compare options, see South Coast tours. For live travel conditions, check safetravel.is.
Allow time for the road
Check the Driving Distance Calculator when deciding how Foss a Sidu: waterfall by Route 1 in South Iceland belongs in the rest of your itinerary.




