Day 1 — Arrival in Cologne/Bonn (CGN) and getting to know the Rhine
✈️ From the airport it’s convenient to take the S19 line to Köln Hbf in ~14 minutes, then check in and take a walk along the Rhine embankment. For a gentle start with kids—ice cream by the water and a view of the famous Cologne Cathedral. In the evening—an early dinner and sleep on a “family” schedule.