Holy crap, the northern sea. We go to the lock, get elevated, the lock opens the other way AND WAVES. A LOT OF WAVES. The northern sea is different. And you have pretty serious tidal currents. We talk 3 meters up and down every 6 hours. So you leave the lock towards Cuxhaven when the flood is running out towards North Sea. We were late and afraid that we would not make it, since our old 36PS Volvo engine would never be able to go against the tidal current. We slowed towards Cuxhaven but made it in time, got a nice box and were pretty stoked to sit right around the corner of our next chapter: The North Sea.