noun
sightseeing tour, tour
B1
Rundfahrt (feminine) means 'sightseeing tour' or 'tour', often circular and by bus, boat or car. Plural Rundfahrten; declension regular. Common collocations: 'eine Rundfahrt machen' or 'mit dem Boot/Bus eine Rundfahrt'. Typically denotes a guided or panoramic short trip around sights.
Examples
Wir haben eine Rundfahrt durch die Stadt gemacht.
We took a tour through the city.
Wir machen morgen eine Rundfahrt durch die Altstadt.
We're taking a sightseeing tour of the old town tomorrow.
Die Rundfahrt mit dem Schiff dauert etwa eine Stunde.
The sightseeing tour by boat takes about an hour.
Details
Mnemonics
Picture a circular bus route going around a city — a round ride around the sights.
Sounds like 'round' + 'fahrt' (fahrt = ride), so think 'round ride'.
die Rundfahrt — imagine a woman (die) holding a tour map on a sightseeing round trip.
Notes
Rundfahrt often refers to a leisure ride (bus, boat, car) rather than a simple there-and-back commute.