Peru manages 77 protected natural areas covering approximately 22.5 million hectares, representing 17.5 percent of the country's total land area. The National Service of State Protected Natural Areas (SERNANP), established in 2008 under the Ministry of the Environment, administers this network. The system divides into nine management categories including national parks, national sanctuaries, national reserves, historical sanctuaries, reserved zones, protection forests, communal reserves, hunting reserves, and regional conservation areas. The legal framework originates from Law 26834 of 1997, the Natural Protected Areas Law, which defines conservation objectives and permitted activities within each category. Peru's protected areas span three principal ecological zones: the Pacific coastal desert, the Andes mountain range, and the Amazon rainforest basin.
Manu National Park encompasses 1,716,295 hectares in the southeastern Amazon, spanning the departments of Cusco and Madre de Dios. UNESCO designated it a Biosphere Reserve in 1977 and a World Heritage Site in 1987. The park protects elevation gradients from 150 meters above sea level in the lowland rainforest to 4,200 meters at the Andean cloud forest boundary. Researchers have documented 1,025 bird species in Manu, more than any other protected area on Earth, alongside 221 mammal species including 13 primate species. The giant otter population in Manu's oxbow lakes represents one of the largest remaining groups of this species. Access divides into three zones: the intangible zone closed to all visitors, the reserved zone open only to scientific research with permits, and the cultural zone where limited ecotourism operates under strict regulations. Indigenous communities including the Matsigenka, Yine-Yami, and Harakmbut maintain traditional territories within the park's buffer zones. The uncontacted Mashco-Piro people inhabit portions of the intangible zone. The park protects the complete watershed of the Manu River, a tributary of the Madre de Dios River.
Huascarán National Park in the Cordillera Blanca of Ancash department covers 340,000 hectares at elevations between 2,500 and 6,768 meters above sea level. The park contains 27 peaks exceeding 6,000 meters, including Huascarán itself, Peru's highest mountain at 6,768 meters. UNESCO inscribed it as a World Heritage Site in 1985, recognizing both its biodiversity and Andean cultural landscapes. The park protects 663 glaciers covering approximately 200 square kilometers, though glacial coverage has declined 30 percent since 1970 due to temperature increases. These glaciers feed 41 rivers and 269 lakes including turquoise-colored Lake 69 at 4,600 meters elevation. The park supports 779 plant species, many adapted to extreme altitude conditions. The Puya raimondii, the world's largest bromeliad growing up to 10 meters tall with a flowering stalk reaching 15 meters, occurs in concentrated stands. Mammal species include the Andean spectacled bear, northern viscacha, white-tailed deer, and vicuña. The Andean condor population uses park cliffs for nesting. The Santa Cruz trek, a four-day route between Vaquería and Cashapampa, attracts approximately 15,000 hikers annually. The park surrounds Huaraz, the regional capital located at 3,052 meters elevation with a population of 127,000.
Tambopata National Reserve protects 274,690 hectares of lowland Amazon rainforest in Madre de Dios department, adjacent to the Bolivian border. Created in 2000, the reserve functions as a buffer zone for Bahuaja-Sonene National Park. The Tambopata River flows through the reserve for 402 kilometers. The Tambopata Research Center, established in 1989 near Guacamayo clay lick, maintains the longest continuous rainforest biodiversity study in western Amazonia. Scientists have recorded 632 bird species, 1,200 butterfly species, 169 mammal species, 103 amphibian species, 180 fish species, and 103 reptile species within reserve boundaries. The reserve contains 14 different forest types based on canopy height, soil composition, and flooding patterns. Giant river otters inhabit oxbow lakes including Sandoval Lake and Tres Chimbadas Lake. Harpy eagles, jaguars, and giant anteaters occur throughout the reserve. Seven clay licks attract macaws, parrots, and parakeets that consume clay to neutralize dietary toxins from unripe fruits. The Chuncho clay lick measures 50 meters wide and 20 meters high along a riverbank. Puerto Maldonado, the departmental capital located 55 kilometers from the reserve entrance, serves as the access point with flights from Lima and Cusco.
Paracas National Reserve on the southern Pacific coast encompasses 335,000 hectares, of which 65 percent covers marine waters. Established in 1975, this constitutes Peru's first marine protected area. The reserve protects portions of the Humboldt Current ecosystem where cold, nutrient-rich waters upwell along the continental shelf. The Paracas Peninsula extends into the ocean creating sheltered bays including Paracas Bay, Independencia Bay, and Lagunillas Beach. The Ballestas Islands, located outside the reserve but visible from Paracas, support colonies totaling 200,000 seabirds including Peruvian boobies, Humboldt penguins, Inca terns, and Peruvian pelicans. The reserve's marine section contains 193 fish species, 74 algae species, and the largest South American sea lion colony on Peru's coast with approximately 4,000 individuals. Humboldt penguins nest in coastal caves, with a population estimated at 600 breeding pairs within the reserve. The terrestrial zone receives less than 10 millimeters of annual rainfall, creating one of Earth's driest deserts. Archaeological sites within the reserve include the Paracas Necropolis, where Julio Tello excavated 429 mummified individuals in 1925. The Candelabra geoglyph carved into a coastal cliff measures 180 meters tall and dates to approximately 200 BCE. The reserve lies 250 kilometers south of Lima via the Panamericana Sur highway.
Pacaya-Samiria National Reserve covers 2,080,000 hectares in the Loreto department, representing Peru's largest protected area. Created in 1982, the reserve sits at the confluence zone where the Marañón and Ucayali rivers merge to form the Amazon River. The protected area encompasses flooded forest ecosystems that inundate seasonally up to 12 meters deep between December and May. During high water periods, 85 percent of the reserve remains underwater. Local communities call this landscape the "jungle of mirrors" due to reflections in the flooded forest. The reserve protects 42 species of amphibians, 58 reptile species, 449 bird species, 102 mammal species, and 256 fish species. The pink river dolphin population numbers approximately 1,500 individuals. The reserve functions as a significant breeding ground for paiche, a fish reaching 3 meters in length and 200 kilograms. Managed harvesting programs allow local communities to extract paiche sustainably under quotas established by SERNANP. The black caiman, which can exceed 5 meters in length, inhabits oxbow lakes throughout the reserve. Giant water lilies with leaves spanning 2 meters diameter grow in calm waters. Thirty-one communities comprising approximately 20,000 residents live within reserve boundaries, primarily belonging to the Kukama-Kukamilla and Cocama indigenous groups. These communities maintain traditional fishing and agriculture practices under conservation agreements. Access requires riverboat travel from Iquitos, typically a six to eight hour journey up the Marañón River to ranger stations at Nauta Caño or San Martín de Tipishca.