Potsdam’s harbour is located in the centre of town, right by the shore of the river Havel. Modern passenger ships of the Weiße Flotte Potsdam (white fleet) and steamboats of the Havel Dampfschifffahrt (steamboat company), which have been restored with loving care, put to sea from here for day trips, round trips and excursions. The offer ranges from a round trip of castles that lasts 1.5 hours to all-day trips through the area of the river Havel and to the capital, Berlin. The highlights of the season are the nocturnal impressions of the castles while sailing past the magnificently illuminated castles of the Hollenzollern dynasty, the "parade of fleets" at the beginning of the season and, last but not least, Wannsee in flames (Berlin’s famous lake) at the conclusion of the season. The harbour restaurant "El Puerto" invites its guests into the canopy of palm trees in the winter and onto a Mediterranean terrace in the summer.