The Pacaya-Samiria National Reserve covers more than 5,140,000 acres (2,080,000 hectares)—an area roughly the size of New Jersey. Tours of the reserve offer a combination of adventures along the Marañón and Ucayali rivers and other, smaller waterways. Most tours involve canoe excursions as well as treks through the jungle, and many also visit one or two of the dozens of indigenous communities located here.
The highlight of trips through the reserve is the opportunity to spot a wide range of wildlife: The area is home to more than 500 bird species and almost 300 fish species, as well as pink and gray river dolphins, 13 different primates, sloths, manatees, black caimans, tapirs, and more.