We have done this type of excursion along the river banks. The Amazon is a dirty river, you will see boats and homes built on stilts. You will see children in the boats holding up snakes, sloths, and monkeys (good photo opts and you give the kids $1.) Here are a couple of my pictures:






In Parintins you will go to a complimentary event called Boi-Bumba show. That was a lot of fun with wild costumes, dances and huge animal floats like this:



EDITING TO ADD: Jim and I must have both been posting the same time.