The Eisacktal valley (ital. Valle Isarco) spans from the Brennero pass down to Bolzano, where it flows into the Etschtal valley of Merano. The valley is a main traffic artery, and not only the Eisack river takes this way, but the entire traffic across the Brennero pass and all the small side valleys, the railroad track, the highway and the motorway. We follow the Eisacktal down on the old Brennero pass road, which is still very broad and in excellent condition, since it had to carry the complete traffic before opening of the Brennero highway. By using this road, a stressfree and beautiful route related to the countryside will be the upside.
If you start in Sterzing downward to Bolzano, you will pass the fortress Franzensfeste. A bulwark from the Middle Ages, which controlled the passenger traffic over the pass. A break and a short inspection of the free accessible armouring buildings and walls are highly recommendable. After this location, the valley continues to open somewhat and we continue drive toward Brixen. Shortly before you reach Brixen there is the possibility to take a left over to Muehlbach and Vintl towards Toblach. On that road you can gain access to the Tre Cime di Lavaredo mountain and east dolomites.
Directly in Brixen, you can also take a left off towards the Wuerzjoch pass. A little bit further down the Eisack valley, just behind the little town named Klausen you will find the exit in Waidbruck up to the Groednertal valley that will bring you to the well known dolomite Sella rock, or shortly before you reach Saint Ulrich take a right to the Seiser Alm. If you continue riding south the Eisacktal valley becomes further more narrow, savages and more fissured. The motorway swings now on concrete pillars along the valley, which is now very narrow and the cliffs very steep.
Just before you reach Bolzano you will pass a small village named Blumau. Several possibilities to modify your tour are now given. Taking a left towards Kastelruth and the Seiseralm, directly opposite the bus stop you take a left into Tiersertal valley which gives you a acclivity and an outstanding panorama, - or take a left up to the village Steinegg and further on a fantastic road over to Welschnhofen and the Karersee lake, - or you just continue straightforward toward Bolzano. Caution, watch out, since the road toward the Tiersertal valley is highlighted only by a small signpost and can be missed easily.