Petronell - Bad Deutsch-Altenburg - Hainburg - Bratislava
Route description:
You start your route in Petronell and first follow the main street eastward until you turn into Solafeldgasse at the edge of town. At its end, you continue east until you reach Bad Deutsch-Altenburg, whose quarry is already visible from afar. If you have enough time, you can refresh your tired legs in the local thermal baths. Bad Deutsch-Altenburg has the strongest iodine-sulfur springs in Europe.
In Bad Deutsch-Altenburg, head towards the Danube bank and pass under the B49. Shortly afterward, you arrive in Hainburg. Here you take a break and visit the old but very well-preserved fortress complex. Back on the route, you say goodbye to the Danube bank, which you will only see again in Bratislava, ride along the railway tracks, and then a short section on Thebner Street, which you leave to the right at the first opportunity. You meet the B9 on whose north side there is a cycle path that you follow.
Shortly before the border, the federal road and the cycle path split. After a long left turn and a right turn, you ride along the riverside promenade of Bratislava and enjoy the view of the Danube, Bratislava Castle, and St. Martin's Cathedral during the last meters.