Jokulsárgljúfur National Park

Literally translated, Jokulsargljufur means glacial-river-canyon and it is aptly named for Iceland’s longest river canyon at 25 kilometers (16 mi).  Jokulsargljufur makes up the northeastern region of Vatnajokull National Park and there are several must-see nature sites in this area including Dettifoss, Europe’s most powerful waterfall and Asbyrgi,  the remarkable horseshoe shaped canyon which Viking settlers believed to be a hoof-print formed by Sleipnir, Odin’s flying horse from Norse mythology.