Gljúfrabúi is an exquisite waterfall hidden inside a gorge only about 150 metres away from the famous Seljalandsfoss. Gljúfrabúi waterfall is 40 metres high and runs from the Gljúfurá River. Some consider it the most beautiful waterfalls in Iceland. Falling down from the green hills of Eyjafjöll mountains and into a gorge, the waterfall truly has a unique look.