I am going to visit my girlfriend next saturday.
I want a quite place like some very unpopular place on a Mountain or any place where less people come.
I want to celebrate her Birthday on a quite place and want to cut a cake close to Nature.
I would appreciate your help.
Thanks in Advance.
The entirety of Duisburg is an unpopular place, I dare say ;-)
As others have already mentioned in your other thread, the area you are going to visit is probably the least romantic in Germany. Besides, there are no mountains (other than perhaps those of waste).
I'd suggest you pick a park if weather allows to spend time there or find a restaurant either here on VT or on Trip Advisor.
Duisburg is well known in Germany as the city where 21 people were trampled to death and over 500 injured in a mass panic at the Love Parade in 2010, because of gross negligence and faulty planning.
As I said in your other post, we went to Duisburg to see the koalas in the zoo. I have never come across a city as big as Duisburg less oriented towards tourists. I even had problems finding a hotel, it seems the hotels there are mostly for business people in meetings. There are some nice places, but as said above it's in a very busy area and it certainly not hilly.
This comes to my mind, have a look and maybe that's something you like: