Translation of acclivity in Spanish

As it was the primary attraction for all tourist we were "escorted" by a few thousand other visitors. Our guide Samuel informed us about the ancient history of this special place.
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.
I did not feel well that night and we decided to stay in our room. My wife brought me fresh take away salad. We were exhausted from our day and watching a movie was the right thing to do.