Riedel's panorama ships offer 1-2 hour Stadtkernfahrt city centre tours up to 20 times per day, departing from near Hauptbahnhof, the Haus der Kulturen der Welt and Märkisches Ufer. The 1-3 hour Spreefahrt tour goes around all the main sights. The 2-3.5 hour Brückenfahrt tour sails several times daily from Märkisches Ufer. There's an additional evening cruise.