This natural reserve of 20 000 km² is the biggest of the country. Its first purpose is to protect the native people and their natural environment; about 42 000 people live here, under the watchful eye of forest guards in order to maintain the balance between the vital necessities of these people and the environment respect. You can observe an important number of incredible aquatic species; pink dolphins, caimans, giant turtles…andterrestrial species as well.