Pachacamac: Peru’s Oracle, Pilgrimage Roads and Pre-Inca Sacred Landscape

About 30 kilometres south of central Lima, where the green Lurín valley meets the Pacific, a low hill of sand-coloured ruins rises out of the desert. For well over a thousand years this was Pachacamac, the most important sanctuary on the Peruvian coast, home to an oracle so feared that a single movement of its head was believed to shake the earth. Pilgrims travelled great distances to consult it, successive civilisations rebuilt it, and the Incas, rather than suppressing it, made it one of the great cults of their empire. On Day 4 of our South American Small Group History and Culture Tour, the group visits Pachacamac from Lima. It is the first archaeological site on the journey, and a good place to begin thinking about the Andean past.

Why Pachacamac mattered before the Inca

Pachacamac’s history is long and layered. According to the site museum, people first settled here around 200 BC, and in the early centuries AD the Lima culture built the first temples, using thousands of small, hand-made adobe bricks. Its oldest surviving temple, known simply as the Old Temple, belongs to this period. From around AD 650, during the era of the Wari state, Pachacamac’s reputation spread, and pilgrims began to arrive from across the central Andes. Between about 1100 and 1470, the local Ychsma people built much of the religious city that visitors see today. Finally, from around 1470, the Incas absorbed it into their empire.

The museum describes it as the most important sanctuary on the coast for more than 1,200 years. Its setting helps explain why. The Peruvian coast is one of the driest deserts in the world, crossed by short rivers that come down from the Andes and create narrow green valleys. Pachacamac sits at the mouth of one of these, the Lurín, between irrigated fields, the desert and the sea, a meeting point of the resources on which coastal life depended.

Oracle, pilgrimage and exchange across the Andean world

The name Pachacamac is Quechua and is usually translated as “creator of the earth” or “he who animates the world”. It was the name the Incas gave to the god of the sanctuary, which was worshipped here long before them. The god was believed to control earthquakes, a power that made it both revered and feared on a coast where the ground often shakes. The site museum notes that some researchers have even suggested a link with Lima’s Lord of Miracles, an image of Christ long associated in the city with earthquakes.

The god spoke through an oracle, consulted by priests on behalf of pilgrims. Visitors approached the sanctuary in stages. According to the archaeologist Peter Eeckhout, who has excavated at the site for decades, a full pilgrimage could take more than a year of fasting, prayer and offerings, as pilgrims moved closer to the shrine through successive courts and gateways. The sanctuary’s priests also established branch oracles in other regions, and important people were brought to Pachacamac to be buried, in the hope of lying close to its power.

Pachacamac also connected distant regions. Among the offerings excavated at the site is a painted textile in a style from the far north coast, more than 800 kilometres away. Recent excavations have also found large tombs: in 2012, Eeckhout’s team uncovered a burial of around 80 people, roughly a thousand years old, the largest tomb yet found at the site. The archaeologists suggested that some of those buried may have been sick pilgrims who came in hope of a cure.

Temples, roads, plazas and changing political power

The ruins are laid out in a series of precincts. Closest to the sea is the sacred core, with the oldest temples. Around it lies a second zone of streets, plazas and great adobe buildings, and an outer area now largely buried under sand. The site is large, around 465 hectares by one estimate, and much of it remains unexcavated.

The most distinctive buildings are the ramp pyramids: large stepped platforms of adobe, each with a broad ramp leading from a walled courtyard to the top. The site museum counts 16 of them. Who built them, and why, is debated. The museum attributes them to the Ychsma; others date many of them to the Inca period. Eeckhout has suggested that they began as palaces for Ychsma lords and later became temples where those lords were worshipped after death.

At the heart of the cult was the Painted Temple, the seat of the god Pachacamac, its walls once decorated with painted birds and fish. It was first built in the eighth or ninth century and enlarged over the following centuries. In 1938, a wooden idol about two and a half metres tall was found in rubble beside it. A study published in 2020 dated the carving to the eighth or ninth century, in the Wari period, and analysed its paint: the red came from cinnabar, a mercury mineral, not blood as had sometimes been suggested. The researchers concluded that the idol had been worshipped for close to 700 years.

The Incas reshaped the site to reflect their own power while respecting the old cult. On the hill above the sea they built a great Temple of the Sun, the state’s god, so that it overlooked the older sanctuary. They also built an Acllawasi, a house for women chosen to serve the cults and the Inca state. Pachacamac shows a pattern seen across the empire: the Incas took over existing sacred places and wove them into their own religion, rather than destroying them.

That came to an end with the Spanish. In January 1533 Hernando Pizarro reached Pachacamac, questioned the priests and, according to his own account, had the vault where the idol stood broken open and the idol destroyed in front of the people. Worship was soon banned and the sanctuary was abandoned.

Pachacamac in relation to Lima and the wider route

Lima itself was founded by the Spanish soon afterwards, and the afternoon of the tour’s visit shows the colonial city that replaced Pachacamac as the centre of power: the main square, the cathedral and the convent of Santo Domingo, whose Dominican friars arrived with Pizarro’s expedition. Lima also has its own ancient adobe pyramids, such as Huaca Pucllana in Miraflores, built by the same Lima culture that founded Pachacamac’s first temples.

Pachacamac is also connected to the rest of the Inca world. An Inca road ran down from Xauxa, in the central highlands, to Pachacamac, linking the sanctuary to the Qhapaq Ñan, the vast road network that crossed the Andes. In 2023, Peru’s Congress declared its protection and research to be a matter of national interest. Our Chile, Peru and Bolivia travel advice covers the wider practicalities of travelling in the region.

How much walking does a visit to Pachacamac involve?

A fair amount, on open, sandy ground. The main circuit through the site is about three kilometres, with viewpoints along the way, and the Temple of the Sun is on a separate route uphill. There is little shade, so bring a hat, sunscreen and water, even under the coastal haze. The site museum, a modern building from 2015 whose ramps echo the pilgrims’ streets, makes a good starting point for understanding what you are about to see.

What questions should you take to an archaeological visit at Pachacamac?

A few questions turn a walk among ruins into a conversation with the past. Which of these buildings were built by the Lima, the Wari, the Ychsma or the Incas, and how can you tell? Where would pilgrims have entered, and how did the walls and gateways control their approach? What did the Incas change, and what did they leave untouched? And why did people travel so far to consult an oracle here, on the edge of the desert? Your guide can help answer them, and the same questions will be useful throughout the journey.

From the coast to the Andes

Pachacamac is the starting point for a theme that runs through the whole tour: how Andean peoples built sacred places, and how the Incas took them over. A few days later in Cusco, the Qoricancha, the Inca temple of the Sun, shows the empire’s own religious centre, later built over by a Spanish convent. In the Sacred Valley, Ollantaytambo shows Inca planning on a royal estate. And in Bolivia, Tiwanaku and Puma Punku offer another pilgrimage centre that flourished long before the Incas.

Our overview of the South America cultural tour route shows how these places fit together. On the South American Small Group History and Culture Tour, a Program Leader and local guides bring the archaeology to life for a small group of up to 16 travellers.