Distance: 9 km. Route: Lambanes-Reykir Nautadalur Botnaleiðaskarð Botnar - Hólsdalur.
Maximum elevation: 710 metres. Hiking time: 4-5 hours.
The hike starts from Lambanes-Reyki and you follow the marker posts from there up the northern hillside of Nautadalur valley along the Bolahryggur ridge. The ridge is said to be named after the renowned Þorgeirsboli bull which is supposed to have killed a traveller there in the early 19th century. At the end of the Bolahryggur ridge, above the bottom of Nautadalur valley the course is set to the northeast to Botnaleiðarskarð pass. From there you are able to see the Almenningshnakki mountain (929 m). Mount Blekkill lays before you to the east and to the north the Selfjall mountain. From the Fljót area this mountain range has been given a single name, the Siglufjarðarfjöll mountains. From the pass it is very steep down to Botn, and there in the middle of the basin is the Botnaleiðarhóll hill. From this hill, you have a view down to Siglufjörður and now you walk down along the Blekkilsá river with grassy Geldingahlíð hillside between Blekkilsá river and Selá river and from there you come to the Siglufjörður water supply in Hólsdalur valley.