Köln-Düsseldorfer sails 12 routes between 28 ports in Germany, mostly St. Goarshausen, Rüdesheim and Koblenz. From St. Goarshausen: Rüdesheim, St. Goar, Mainz and eight other ports. From Rüdesheim: St. Goarshausen, Koblenz, Boppard and 11 other ports. From Koblenz: St. Goarshausen, Boppard, St. Goar, Oberlahnstein, Braubach, Kamp-Bornhofen and Bad Salzig. From Boppard: St. Goarshausen, St. Goar, Kamp-Bornhofen and Bad Salzig. From St. Goar: St. Goarshausen, Koblenz, Boppard, Oberlahnstein, Braubach, Kamp-Bornhofen and Bad Salzig. From Linz am Rhein: Bonn, Cologne, Cologne-Porz and six other ports. From Mainz: St. Goarshausen, Rüdesheim, St. Goar and eight other ports.