Goðafoss is a fine example of a waterfall which has formed by backward erosion of a river into a large flat lava flow which, in this case, originated at the shield volcano Trölladyngja. Water of the Skjálfandafljót drops over a 12 metre high cliff into a horseshoe-shaped basin.
Standing on the western side of Goðafoss.
Small western falls; some columnar structure can be seen in the basaltic rock.
Goðafoss from the eastern side.
Goðafoss with rainbow; trough-shaped glaciated valley in the background.