Translation of lucrative in Spanish

Although it was only one thirty we had already seen a lot. The ones who tell you that you could stay there for a week and not see everything are actually right. The entire region is vast.
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.
Fortunately and against all odds there were seats available so that we changed our booking to the same day. Our destination was El Calafate in the South of Patagonia in order to see the glaciers.