The waterfall Haifoss in the
Thjorsa Valley is 122 m high, probably the second highest one of the
country. It remained nameless until the turn of the 19th century, when it was
named by the naturalist Dr. Helgi Petursson. Just a stone’s
further east, another lower waterfall, Granni (The Neighbour),
down into the same gorge.
The best access is from the 4wd road above the
waterfalls, but people have to be careful on the brink of the gorge. The
waterfalls are also accessible from below, also by a 4wd track from the
excavations at Stong
or the swimming pool at Rauduskridur.