Translation of in cash in German

I was never there but I heard that the night life is very exiting. I am going to Amsterdam next year with my uncle. He will return to his house where he was born. I think to come to germany next year but I don have any idea
Hey. You are online! Pollution means that the air is filthy and that it is hard to breathe. I'm getting much better at German, so please correct me when I am wrong in my language. You're English is actually great.
We first took a regular bus to the border, which was basically just an empty building. There we switched to Jeeps, as the terrain was rocky. In our group there were 4 American girls and us.