Bodensee-Schiffsbetriebe sails six routes between 20 ports in Germany, Austria and Switzerland, mostly Friedrichshafen, Konstanz and Bregenz. From Friedrichshafen: Konstanz, Bregenz, Romanshorn and eight other ports. From Konstanz: Friedrichshafen, Bregenz, Überlingen and 11 other ports. From Radolfzell: Reichenau, Iznang and Mannenbach.