To 19 ports; the busiest crossings are to Konstanz (30 minutes, eight times a day, April to mid-October), Mainau (20 minutes, five times a day, April to mid-October), Unteruhldingen (40 minutes, five times a day, April to mid-October), Überlingen (1 hour 15 minutes, five times a day, April to mid-October), Dingelsdorf (an hour, four times a day, April to mid-October), Hagnau (15 minutes, twice a day, April to mid-October), Immenstaad (30 minutes, twice a day, April to mid-October) and Kreuzlingen (30 minutes, twice a day, April to mid-October).