Right now, we are staying in the Amazon at a place called the Amazon Shelter where they take in wounded animals including monkeys, tortoises, birds, deer, and even sloths. Most of the animals can't be pet because they are going to be released to the wild and aren't supposed to get used to humans. The only exception to that rule is with Ramon and Luciano.
Ramon and Luciano will be with the rescue center for life because Ramon has a permanently broken hand and Luciano is the only capuchin monkey here and capuchin monkeys have to be released in groups.
The Amazon Shelter is a non-profit organisation, so you go there, pay a bit of money which helps with the cost of the fruit to feed the animals, you do volunteer work, and you get a room and 3 meals a day. There are lots of activities to do around the shelter, like cutting fruit for the animals, replacing wooden boards on the walkways, clearing the pathways with a machete, hammering in nails, shampooing dogs etc...
If you ever go to the Peruvian part of the amazon, you should definitely come here even just for a few days and see what it's like.