Just any interesting places you or AC recommend that aren’t things I could find in a tourist guide. Like favourite cafes, bars etc. I finish work at 1pm every day due to the joys of the compressed German schoolday, so it’s easy enough to get into the city.
Yeah entenwerder is def a good shout as it’s a nice park with a cafe/bar on the river. Hafencity nearby is good too with some nice galleries. Ditto the beach in Altona you can take the boat down the Elbe to.
St. Pauli and Sternschanze are best for “nightlife” I guess, take one morbid look at Reeperbahn and then get as far away as possible!
There’s not a massive amount in Dusseldorf tbh but it’s pleasant in its way. The Konigsallee is very pretty and the Altstadt allegedly has more pubs per square mile than anywhere else in the world. I did have some absolutely terrific sushi there at a place called Kushi-tei of Tokyo, as shrewbie said the Japanese food is excellent due to its large Japanese ex-pat community.