Parque nacional Otishi, National park in Junín and Cusco regions, Peru

Otishi National Park protects the northern end of the Vilcabamba mountain range, a forested area of 305,973.05 hectares in the regions of Junín and Cusco. The park spans the fluvial yunga ecoregion, where steep slopes are covered by cloud forest and deep valleys. A tiered waterfall drops down a densely forested slope, with an upper narrow stream and a lower thin column falling onto a pale rocky cliff face framed by green foliage.

The Peruvian government created this protected area in 2003 after decades of conservation work. These efforts had started decades earlier when preserving the region first became a priority.

The park's creation followed a process in which indigenous federations took the lead: representatives of 36 native communities in the region, with their regional and national organisations, reached the consensus behind the 2003 declaration. The name Otishi comes from the great stone arch of Pavirontsi, the natural bridge reported by Alfonso Rizo Patrón, which the 1987 expedition of the Otishi Heritage Conservation Association reached overland.

The park has no public access or visitor infrastructure; its remote Vilcabamba terrain is reached only by long expeditions, and conservation work has long been hampered by difficult, unsafe access. Entry is not open to tourists, so there are no trails or facilities to plan around.

The area serves as a refuge for rare bird species and mountain bears that have few other places to survive. It also shelters many orchid varieties and plants found nowhere else.