You might miss the fourth waterfall at Seljalandsfoss because it is mostly hidden by this cliff in the foreground called Franskanef (French Nose). For a better look, climb up the ledge or walk a bit further to the flowing Gljúfurá River and then into a narrow mountain slit. This ledge waterfall is Gljúfrabúi meaning Dweller of the Gorge. The dramatic display of water from Gljúfurárfoss drops 131 feet.