Köln-Düsseldorfer is normally a sensible choice for day cruises about the Rhine. KD has the biggest number of departures definitely of all Rhine satisfaction boat traces. If you need to do all the loop (out of your start line and back again) the entire loop will take around two https://www.getyourguide.com/seine-river-l2601/bateaux-parisiens-cruise-quick-entry-ticket-t193940/?partner_id=KKUE1H6¤cy=USD&travel_agent=1&cmp=share_to_earn