This is one of the oldest outdoor swimming pools in Iceland (built in 1923). We wanted to visit it for a long time but thought it was a bit difficult to get to and we expected a long hike. It turned out it’s actually not as remote as we thought at all and is located in between Seljalandsfoss and Skogafoss, so you could easily combine them. To get there you’d need to drive on a gravel road for 5 minutes (we had a 4x4 but the road was pretty good so a normal car should also be fine unless there’s snow). At the end of the gravel road there’s a small parking place and then you’d have to hike for about 15-20 minutes to get to the swimming pool itself. The trail is not marked but is quite intuitive and very easy, you’d have to cross a small stream and you’d be able to see the warm water pipes after about 10-15 minutes. However, you won’t be able to see the pool itself up until you’re almost there.