Translation of graduated in Spanish

I hope you can understand the corrections this way... Two small errors. let me know if there is a word or sentence or phrase that you didn't understand! I will try to think more on the "since" question...
We were not the only tourists, there were a many boats sailing on the same route. At one point the driver stopped the boat and immediately children of the village people approached us.
I think there are many similar words in English and in German like park, house, bank and many more. Many people in Germany know these words, although they do not speak English properly.