Ohthere's late 9th-century travel account provides details of three sailing routes, an exploring voyage round the North Cape, the route from Hålogaland down the Norwegian coast to a place called Sciringes heal (Kaupang), and the third describing a voyage from Sciringes heal to Hedeby. In their sum, these sailing routes cover the entire distance from the south coast of the Kola Peninsula around the North Cape, along the Atlantic Coast of Norway and through the Danish archipelago to Hedeby (Schleswig), totalling some 2,200 nautical miles. This paper examines the nautical details mentioned by Ohthere, drawing on records of comparable voyages made by historic as well as reconstructed vessels. Following results will be presented:

1. An assessment of the turning point of Ohthere's northern voyage.

2. The second route will be identified as a route description rather than an actual voyage.

3. Ohthere's voyage to Hedeby has most likely been carried out under favourable conditions and without seeking harbour for the night.