Translation of gringo in Spanish

I was tired and still felt a little ill, so that I agreed to meet the other family and they escorted me to the next building. The new family instructed me not to tell anyone where I stayed here.
I told them that in Europe not everything was perfect. I told them that there were also very dark times in that continent and that even in peaceful times live was not always easy as they had thought.
The same evening we left Patagonia and flew to the capital of Argentina, Buenos Aires. We have waited a long time for this moment as we have not been in a city for almost two weeks and we usually love the city.