The Manu National Park is one of the most important tropical parks in the world, and was declared a "World Biosphere Reserve" by UNESCO in 1977. It is home to a many different ecological zones that descend from 4000m/13120ft to 300m/984ft. The Manu harbors unique wildlife, records of over one thousand species of birds, 200 species of mammals, many reptiles and 10% of all the plants of our planet. Due to important differences in altitude, Manu covers several types of ecosystems, which enormously increases the biological diversity and the ecological floors. The most southerly point of the Park, Acjanaco, lays at 3500m above sea level and is described as Tropical Alpine Grassland. It has short, scrubby vegetation and the weather is often cold.

Lower down in the Midget Forest, with short trees, cold humid air and very diverse fauna. One species of altitude Toucan can be seen here.!

Further down, between 1000m and 2500m is the area called The Cloud Forest is a unique ecosystem that receives a lot of rain and that hosts a large number of endemic species such as the spectacled bear and the Cock-of-the-Rock (the national bird of Peru). Lower again is the High Forest, which is between Cloud Forest and the Amazon basin, a diverse landscape that is rich in fauna. This is also where many different indigenous ethnic tribes have settled. Finally is the low Amazon basin at about 350m where no other park on earth can compareto Manu in terms of life forms. There are 13 species of monkeys and one of the world´s unusual mammals: The Giant Otter.