Iceland

Ash from the 2009 eruption of Eyjafjallajokull, Iceland

Photo by Morgane and Sanjoy

Located on the southern region of Iceland is the famous Eyjafjallajokull (pronounced ay-uh-fyaat-laa-yow-koo-kl) glacier-covered volcano. The melting of the ice on top flows down into the Seljalands River and then falls down over a high 60 m (200 ft) cliff that forms this spectacular waterfall.

Seljalandsfoss is one of the few waterfalls in the world that it is possible to walk behind. There’s even a small cave inside! Even though most tourists visit in the summer time, the winter lights offer unique spectacular views as the icy water cascades down the cliff