Old harbour of Duisburg on the river Rhine, with paddle-tug OSCAR HUBER / RAAB KARCHER XV at museumvessel (see; http://www.debinnenvaart.nl/schip_detail/3800/)
To the left pushers HANIEL 14 and HERKULES IX, this shot was taken in just the few seconds that the harbour was visible while passing on a river cruise ship.