Many varieties of orchids, shrubs, thorn trees and animals are found in these regions such as the spectacled bear, boa constrictor, the endangered American crocodile, and 111 bird species. The national park was officially established on July 22, 1975 and has an area of 151,561 hectares (585.18 sq mi).
Tropical and humid during the summer months, December to April, and a drier savanna climate during the rest of the year. The average temperature is around 27 °C (81 °F), with highs of 42 °C (108 °F) and lows of 16 °C (61 °F). Throughout the year it is warm, over 25 °C (77 °F), and summers can turn unbearable.
It is the only protected natural area in Peru where the equatorial dry forest ecoregion is still preserved.