Every morning, when the fog slowly rises from the Manu River, hundreds of macaws and parrots take flight towards the red clay walls along the banks. They are called collpa, the mineral clay lick, and represent one of the most extraordinary natural spectacles in the entire Peruvian Amazon. Getting here requires effort: a single dirt road, which starts from the city of Cusco and descends into the jungle through the Andes, connects the outside world to the Manu National Park, located in the Madre de Dios region, with the main access from the Pilcopata area.
Officially established in 1973 and declared a Natural Heritage of Humanity by UNESCO in 1987, the park covers about 1.7 million hectares, embracing a variety of ecosystems ranging from high-altitude Andean grasslands to lowland tropical rainforest. This extreme altitudinal transition — from over 4,000 meters to less than 300 meters above sea level — is one of the main reasons why Manu hosts a concentration of living species that is hard to find elsewhere on the planet.
A biodiversity that is measured in concrete numbers
Researchers have documented over 1,000 bird species in the park, a number that represents about 10% of all known bird species in the world. Among these are the Andean cock-of-the-rock (Rupicola peruvianus), with its bright orange plumage, and numerous species of toucans and hummingbirds. The recorded mammals exceed 200 species, including the extremely rare jaguar, the Amazonian tapir, and the giant otter, often spotted along the oxbow canals — the horseshoe-shaped lakes formed where the river has changed course over time.
The flora is no less impressive: botanists and researchers have cataloged thousands of plant species, including trees that exceed 40 meters in height and a variety of orchids, tree ferns, and epiphytic plants that cover every available branch. Walking in the visitor-accessible forest area means traversing overlapping layers of life: the damp and shady understory, the mid-canopy where howler monkeys and capuchins move, and the upper vault where harpy eagles glide.
The collpa: the spectacle of clay lick
The clay licks — the collpa — are the most visually intense moment of any visit to Manu. The most famous ones are located along the Manu River and the Alto Madre de Dios River, and every morning, in the early hours after dawn, they attract flocks of scarlet macaws (Ara macao), blue and yellow macaws (Ara ararauna), and dozens of other parrot species. The animals ingest the mineral clay to neutralize the toxins present in the seeds and unripe fruits that make up part of their diet. The collective noise of wings and calls, combined with the vivid color of the plumage against the gray clay wall, creates a sensory experience that is hard to describe.
Visitors observe the spectacle from observation platforms hidden in the vegetation, built far enough away not to disturb the animals. Punctuality is essential: the macaws typically arrive between 6:00 and 9:00 in the morning, and any sudden movement or loud noise can scatter the entire flock in a matter of seconds.
How to get there and what to know before leaving
Access to the park is almost exclusively through Cusco, from which a road descends into the jungle through the Paucartambo pass. The journey by jeep or minibus to the entrance area generally takes 8-12 hours depending on road conditions, which during the rainy season — from November to April — can be impassable in some sections. Alternatively, there is an air connection with small planes to Boca Manu, which significantly reduces travel time.
It is important to know that the restricted use area of the park, the wildest and most untouched part, is accessible only with authorized guides and specific permits issued by the Peruvian authority SERNANP. Tours organized by local operators in Cusco usually include these permits in the package. The best time to visit is the dry season, from May to October, when the trails are passable and wildlife is easier to spot along the riverbanks. Bringing high-concentration DEET insect repellent, waterproof boots, and a good quality binocular is not optional: it is simply necessary.
The sense of being guests in a living ecosystem
What distinguishes Manu from many other nature reserves is the concrete feeling of being in the minority. One does not visit nature as one visits a museum: here the forest sets the rules, the times, and the rhythms. Visitor groups are small by park policy, the trails are not illuminated nor marked with tourist signs, and the absence of phone connection for most of the territory is total. This limitation, which may seem like a disadvantage to some, is actually what preserves the integrity of a place where wildlife has not learned to ignore human presence.
Manu does not offer easy comforts or immediate access. Instead, it offers the concrete possibility of observing an ecosystem that operates according to its own logic, where a jaguar can cross the path in front of you at six in the morning and where the silence of the night is interrupted only by the singing of frogs and the distant call of some nocturnal bird.
