Jökulsárgljúfur

"Jökulsárgljúfur is the largest river canyon in Iceland and most spectacular, about 25 km. The upper canyon, between the mountain Þórunnarfjall and Dettifoss, is up to 120 m deep. The land along the western bank up as far as Dettifoss is a National Park of over 150 km², established in 1945."

"Dettifoss is the greatest and most majextic of Iceland's waterfalls, 44 m high with volume of 212 tons per second, so the ground shakes with the force of it. Thought to be the most powerful falls in Europe. This magnificent natural feature has inspired many poets. It can be viewed from either bank. Upstream is the Selfoss waterfall, broad but not high."

Hafragilsfoss is about 2 km downstream from Dettifoss, 27 m high.

"Vesturdalur is a small valley south of Hljóðaklettar enclosed by cliffs"

"Hljóðaklettar ("Echo rocks") is a group of rocks by the Jökulsá river that gets its name from a strange echoes created by the numerous caves and uncommon rock formations."

"Ásbyrgi is a U-shaped depression about 3,5 km long, surrounded by cliffs up to 90 m high with a huge crag (2 km by 250 m) called Eyjan ("The Island") in the open end of the U. Its origin is uncertain. It might have been formed by subsidence, or it could have been formed by floods in the river Jökulsá. There are also signs of sea-water having flowed into it. The legendary explanation is that it is a hoofprint made by Sleipnir, the eight-legged horse belonging to Óðinn, fatehr of the gods, the crag Eyjan having been formed by the frog of his hoof. There is a small lake at the inner end. Vegetation ranges from moorland growth near the open end to thickly growing birch and rowan trees farther in. Ásbyrgi is a popular summer holiday destination, and it is under the protection of the Forestry Sercvice."

Dettifoss, breathtaking power
Hafragilsfoss, seems like nothing after its big brother
Hljóðaklettar, beyond imagination 
Ásbyrgi, a magical place on earth
Ásbyrgi, Eyjan mostly, in June 2002

Texts from The Visitor's Key to Iceland