Translation of schist 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.
They were floating in self made tubs and rowed with sticks. When they reached our boat they tried to sell us beverage. We vigorously denied them access to our boat. It just did not help.
In the evening we stayed in our room, watching an old James Bond. On the second day, we went to the Bellavista neighborhood and ate at a Chinese restaurant, rice is supposed to be good against stomach pain...