Translation of infantryman in Spanish

We bought some sandals which cost us two dollars each pair. Then we visited the surroundings of the market where many store sold paintings, sculptures and books, some very beautiful ones.
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.
The border control was in the middle of the Andes mountains, at an elevation of around 2000 meters above sea level. The forest around us was covered with snow and the scenery was breathtaking.