Gullfoss
Gullfoss is one of the most popular waterfalls in Iceland. River Hvítá flows abruptly into a crevice 32 metres deep. The crevice is about 20 metres wide and 2.5 kilometres in length, and extends perpendicular to the flow of the river. As one first approaches the falls, the edge is obscured from view, so that it appears that the river simply vanishes into the earth.