In the page's words:

The EURO 2024 Festival in Cologne will take place on both sides of the Rhine. A ferry will provide the perfect connection between all event locations and a fantastic view. Throughout the EURO period, the free "Strolch" passenger ferry will run daily between Cologne's Old Town and Deutz, creating a perfect link between the "Fan Zone", "Public Viewing" and "Football Experience".

Vom 14. Juni bis zum 14. Juli
Früher Nachmittag bis spät in die Nacht