Translation of scourer in Spanish

We drove to the hotel Rex where we made reservations in advance. However, once there, two American guys told us that they had a voucher from a travel agent and the price was like half of it.
I went out to buy some food near the hotel. There were no supermarkets around and no food stores. The only thing I could find was a bakery with mass produced cookies imported from China.
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.