To 9 ports; the busiest crossings are to Stift Neuburg (25 minutes, four times a day, late March to October), Neckargemünd (1 hour 10 minutes, four times a day, late March to October), Neckarsteinach (1 hour 35 minutes, four times a day, late March to October), Ladenburg (an hour, once a week, early December to mid-December), Eberbach (three times a year, May to August), Worms (twice a year, May to September), Rüdesheim (once a year, in early July) and Mainz (once a year, in mid-September).