Aldeyjarfoss, Waterfall in Northeastern Region, Iceland.
Aldeyjarfoss is a waterfall in northeastern Iceland that drops about 20 m (65 ft) into a pool enclosed by a dense row of hexagonal basalt columns. The columns rise close together on both sides of the water, forming a tight dark frame around the cascade.
The basalt columns and the surrounding Suðurárhraun lava field were formed by volcanic activity around 9000 years ago. That eruption shaped much of the valley floor and left behind the rock formations that now frame the waterfall.
The name Aldeyjarfoss comes from a nearby island, following an Icelandic tradition of naming natural features after surrounding geography. Visitors standing at the edge often notice how the dark columns and white water create a sharp contrast that draws the eye naturally downward.
The falls sit in the remote Bárðardalur valley, reached by gravel roads 842 or 844, and a vehicle with good ground clearance is strongly recommended for either approach. Since the spot is far from main roads, it is worth checking road conditions before setting off.
Viewing the falls from the north side reveals the full height of the basalt columns against the water, while the south side opens up the view of the pool below from a lower angle. Walking to both sides takes only a few minutes but gives the impression of seeing two different places.
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