Hvanngiljafoss or Kjalkaversfoss is waterfall in the south of Iceland near the famous Golden Circle. Hvanngiljafoss is a powerful waterfall in the river Þjórsá and is situated 6,5 kilometers upstream from the waterfall Dynkur and 11,5 kilometers upstream from Gljufurleitarfoss.
There is 4WD road on the east bank that follows the River Þjórsá. The dust road starts at from road 26 and on a map is called Búðarháls. From the road it is still a 5,5 kilometer walk.
There is also a trail on the west bak of the river from Sandafell. Passing the hill Flóamannaalda you have to walk to Hvanngiljafoss, a 3 km walk.
Along the longest river in Iceland, the river Þjórsá (Thjorsa), lies the Þjórsárdalur valley. In Þjórsárdalur you will find many of the finest waterfalls of Iceland and on a clear day you will have a view on the most famous volcano of Iceland, Hekla. There are about 20 ruins of farmhouses of the time of the big eruption of Hekla in the year 1104. A flourishing farming community lived in Þjórsárdalur after the settlement.
Nearby you will find Haifoss (122 m): one of the highest waterfalls in Iceland, Gjain: a small but really scenic waterfall or Hjálparfoss: famous because of the basalt rocks. We only visited Hjalparfoss because this one was easy to reach. We tried to drive to Gjain but with a small 2WD that was impossible to do. A shame because Gjain and Haifoss are in my top 10 of most beautiful waterfalls in Iceland.