If you leave the ascent to the crater rim of Rauðibotn to the right and take the path to the left, you will come to Lake Hólmsárlón. The Hólmsá flows out of the lake in a small cascade. The turquoise color of the lake really comes into its own from a drone perspective. When we took a break at the bottom of the lake, I couldn’t really notice it, but it also has a lot to do with the angle to the sky.
In the background you can see the mountains around Hrafntinnusker, some of which are covered in snow.