After visiting the beautiful old town of Villach, you start cycling on the Drauradweg, following the flow of the river. Just outside the city, turn right onto the modern Peace Bridge (Friedensbrücke) which allows us to cross the Drava and reach the beginning of the Carnica cycle path (Karnische Radweg - R3). This cycle path climbs the course of the Gail river, one of the tributaries of the Drava, using partly paved paths and partly with a natural bottom but always of good quality.
Near Unterschütt you also leave the Carnica cycle path and, following the signs of the "Tarviser Radweg - R3C" cycle path, cross the Gail river in the direction of Erlendorf thanks to a cycle-pedestrian bridge. The route of the Tarviser Radweg has recently been modified and runs for long stretches on the new cycle path built alongside the national road (N83).
Once past the village of Pockau, you will soon reach Arnoldstein, an important market town dominated by the ruins of a fortified monastery but also by Mount Forno (Dreiländereck), the point where the borders of Austria, Italy and Slovenia meet.
In Arnoldstein, cyclists are forced to cross the center of the country by riding on the busy national road. At a roundabout, just before passing the last buildings of Arnoldstein, the Tarviser Radweg returns on an asphalted cycle path built next to the national road and continues, with a constant climb, up to Thörl-Maglern.
Leaving the last Austrian village, you immediately reach the border where the cycle path continues, immediately taking altitude thanks to two hairpins and entering the Tarvisio Forest. In a few kilometers, still pedaling in the shadows of the lush forest, you reach the town of Coccau di Sotto. After a sharp climb along the road that crosses the town towards Coccau di Sopra, the Alpe Adria Radweg cycle route continues using an abandoned stretch of the "Pontebbana" state road. Then the cycle path continues on the former track of the Pontebbana railway which, slightly uphill, leads us to the abandoned station of Tarvisio Centrale where the branch of the path that leads to the Slovenian border and the Fusine lakes comes off.
Going straight on we reach Tarvisio, a town of Roman origin and another important market in the valley of the Slizza / Gailitz torrent). Our cycle path crosses Tarvisio always remaining on the old railway line, which passes near the characteristic station of "Tarvisio Città" and the historic parish church.