Dettifoss is Europe’s mightiest waterfall. It is 44 m high and about 100 m wide. Further south is another called Selfoss, 10 m high, and further north the Hafragilsfoss (27 m high). It is possible to reach the waterfalls from both sides of the glacial river Jokulsa,    but one has to be careful when traversing the rugged terrain on foot.

Dettifoss is the southernmost part of the National Park Jokulsargljufur and the canyon below is a miniature replica of the Grand Canyon in Arizona, USA. Ideas about harnessing the energy of the waterfalls has been debated and the area has been researched for that purpose. Fortunately the basaltic strata proved to be too permeable for the realization of the project.
The distance from the capital is 572 km and 92 km from Husavik.
 Road conditions

Travel Information
The National Park's Visitors Centre, called "Gljufrastofa", is situated in Asbyrgi.  It is open from the beginning of June to the end of September from 9 in the morning to 7 in the evening.  Tel.:  00 354 465 2195 and 855 4737.  jokulsargljufur@ust.is