The Mainkai is a street on the right bank of the Main in Frankfurt's old town between the Old Bridge and the Lower Main Bridge. It was created in 1826 by filling up and widening the mooring and landing place on the banks of the Main, which had been fortified since the Middle Ages. It is now a promenade along the river and was reserved for pedestrians and cyclists for a year on a trial basis from July 30, 2019.[1]
The Mainkai continues downstream into the Lower Mainkai with the Nizza, a part of Frankfurt's green belt. Together with the Schaumainkai on the opposite side of the Main, it forms the Museumsufer.
The connecting line of the port railway runs along the Mainkai, which is also used for special passenger trains of the Frankfurt Historical Railway. The Mainkai is the main mooring point for the Frankfurt passenger shipping company and a departure point for the Cologne-Düsseldorf Rhine shipping company
Source: Wikipedia
Here you can really stroll right along the water - but there are a lot of people on the move. In addition to pedestrians, there are also joggers and cyclists here.