The classic: around Lake Constance (section between Bregenz and Friedrichshafen)

From the port of Bregenz, the cycle path leads along Lake Constance past Lochau across the Austrian-German border to Lindau. The historic old town of Lindau is located on an island in Lake Constance and is connected to the mainland by a causeway and a bridge. ‘The island where lime trees grow’ is apparently what the listed island’s name means according to a medieval codex. It forms the centre of Lindau and sometimes also the centre of an international gathering of guests, for example, when the Nobel Prize winners meet there every year. Lindau also boasts one of the most beautiful harbours on Lake Constance.Back on the mainland, the cycle path continues towards Wasserburg, via Nonnenhorn to Langenargen, where Schloß Montfort, which is always well worth a visit, is located. The route continues from Langenargen towards Friedrichshafen. Friedrichshafen was formerly a busy transshipment point for trade with Switzerland, which caused the small town to grow and become wealthy. Count Zeppelin made Friedrichshafen famous – and the city is still know to this day for being the home to successful technology companies. The beautiful waterfront promenade, the castle and the castle church, the Zeppelin fountain and the Zeppelin monument as well as the Zeppelin museum are also well worth seeing.The return trip to Bregenz from Friedrichshafen harbour may be made in comfort by boat.The boat trip from Friedrichshafen to Bregenz takes around two hours.

The cycle route heads from the port of Bregenz along the lake shore to Lochau. Cyclists should follow the markings from there to Lindau, Bad-Schachen through Wasserburg to Nonnenhorn and on to Langenargen through Eriskirchen to Friedrichshafen.

https://www.vorarlberg.travel/en/safety-tips-on-the-mountain/