Translation of necessarily in German

We sat on the balcony and saw that the hotel had even a pool on the roof top but I did not have the courage to jump in. It just looked to dirty and as no one was in there I did not need to be the first.
However, his English was excellent and we soon found out that he was an English teacher before the war. We agreed on a price for showing us the entire area during the next 2 days. We took a nap and he picked us up later.
We a lot of luck we had made the entire journey in one day, leaving around 1500km behind us. The town turned out to be great. A lot of young people, many bars and restaurant and a great atmosphere.