Translation of welding in Spanish

We agreed to stay in the room with no windows and unpacked our bags. We wanted to have dinner and went out to a Sushi restaurant a friend told us about. It was a great place with great atmosphere.
His name was Samy and he offered to take us to several places. In the beginning we were bothered as he did not stop talking on the way from the airport to the hotel and we thought he tried to sell something.
We first took a regular bus to the border, which was basically just an empty building. There we switched to Jeeps, as the terrain was rocky. In our group there were 4 American girls and us.