12 kilometers, elevation is about 500 meters. 3 hour walk.
On Klambrar one can find a renovated stone house from 1880-1885, which is conserved and in the icelandic register of antiquities. The local doctor lived there and hosted a apothecary and a hospital. The name of the stonesmith is unknown, but this type of stone houses is extremely rare in rural Iceland.
From Káraborg one can walk along a highly visible trail to the east. After that no official path is visible. Þröskuldur is a heath between Þrælsfell and Sótafell and from there one will hike down through Ormsdalur. Hike ends right next to Klambrar in Vesturhóp.