Translation of schedule 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.
The jet lag could be felt. We entered the floating village. People were actually living in boat houses and most of them seemed very poor. Their main income source was fishing and tourism.
We blamed the sandwich which we had eaten a day earlier for lunch in Bolivia for the stomach ache of my wife. She became very weak and she had to stay in the hotel for two entire days.