From more than 2,000m above sea level, I’m now down to just 30m (and will go negative quite soon). From steep descents, it has flattened out almost completely.

I still marvel at the size of these enormous barges plying their way up and down:

Close to my destination today, Kleve, Wunderland Kalkar theme park is constructed inside the buildings of a nuclear power station that was never opened! Construction started in 1972 on what was intended to be Germany’s first plutonium-fuelled fast breeder reactor. Completed in 1985, it cost $4billion.

Following the Chernobyl disaster in 1986, it never went into production and the project was cancelled in 1991. From afar, the most noticeable of 40 attractions is a large swing ride that emerges from the top of the cooling tower.

And you can tell which country is next: