Translation of annoying in German

Hamburg is a very beautiful city and i have a friend studying in that university. I hope you can enjoy your live and studying there. I have been teaching in a language school for a while. But in one month I am going to be in Hanover again.
We decided to walk back and explore the city on foot. It was hard to cross the streets as there was an endless flow of motorcycles and bikes. One needed to just enter the street and cross it.
We had a great day in Bolivia and amazing 3 days in the entire area of Northern chile. It was time to move on and we wanted to go South to the capital of Chile. We were so exhausted from our day trip that we immediately fell asleep.