To 20 ports; the busiest crossings are to Alf-Bullay (15 minutes, about three times a day, May to late October), Briedel (15 minutes, about twice a day, May to mid-October), Pünderich (25 minutes, about twice a day, May to mid-October), Reil (40 minutes, about twice a day, May to mid-October), Enkirch (an hour, about twice a day, May to mid-October), St. Aldegund (25 minutes, five times a week, May to late October), Ediger-Eller (1 hour 5 minutes, five times a week, May to late October) and Mesenich (1 hour 15 minutes, five times a week, May to late October).