Translation of yogurt in Spanish

And I think it is really good idea for us to writing with each other in Spanish or English. however i am still beginner for Spanish learning. It seems still impossible for me to writing to you in Spanish. But i hope i can do it soon.
After ten minutes and after drinking a bottle of water we returned to our place. It was already three in the morning. We were unhappy to miss a great party, but our physical conditions were bad.
We walked almost every alley in Cusco, stunned by its beauty and ignoring the developing altitude thickness, which resulted in the most horrible night of our lives.