Inca Trail to Machu Picchu

Listen for a moment. Under the voices and the clink of trekking poles, there is a steady roar. That is the Urubamba River, running fast and cold and green through the valley floor. The air here smells of eucalyptus and damp earth. Above you, the mountain walls rise so steeply that the sky looks like a narrow ribbon. You are standing at the edge of the Sacred Valley, near Ollantaytambo, and the path ahead leads to Machu Picchu.

This is the Classic Inca Trail. Most groups walk it over four days, covering a little more than forty kilometres. Many start at a point that guides still call Kilometre 82, named for its distance along the railway from Cusco. The railway came long after the Inca. But the stone path you will follow is far older. In many places, you will walk on the same flat stones that Inca travellers placed here more than five centuries ago.

First, a word about the town behind you. Ollantaytambo is one of the few places in Peru where Inca street plans still shape daily life. Families live in houses built on Inca foundations. Water runs through stone channels along the lanes, as it did centuries ago. Above the town, great terraces climb toward a temple complex of pink granite. In the 1530s, the Inca ruler Manco Inca used this site as a base during his resistance against the Spanish. For a time, his forces held them back here.

Now think about the scale of what the Inca built. This trail is only one small thread in a road network that ran for thousands of kilometres. The Inca called their empire Tawantinsuyu, which means the land of the four parts. Its main roads linked what is now Ecuador, Peru, Bolivia, Chile, and Argentina. In 2014, UNESCO added this whole road system, known as the Qhapaq Ñan, to its World Heritage list. Here is a surprise for many visitors: the Inca built all of this without the wheel.

So who used these roads? Mostly people on foot, with llamas carrying loads. Royal runners called chaskis passed messages from relay post to relay post. They carried spoken reports and also knotted cords called khipu. A khipu used coloured strings and patterns of knots to record numbers, and possibly other information. Historians believe the relay system moved news across great distances in a matter of days. Today, the porters who carry camp gear on this trail continue a long Andean tradition of moving goods on foot.

On the first day, the path follows the river and then turns up a side valley. Soon you reach a wide set of ruins with curving terraces. Guides usually call it Llactapata or Patallacta. It was likely a farming and supply centre, a place that fed travellers and workers on the road. Look at the way the terraces follow the shape of the hill. The Inca did not fight the mountain. They cut it into steps, and they filled each step with layers of stone, gravel, and soil so that water drained well.

The second day is the hard one. The trail climbs to Warmiwañusca, a name usually translated as Dead Woman's Pass. It is the highest point on the route, a little over 4,200 metres above sea level. The air up here holds much less oxygen than at the coast. Your heart will pound. Your steps will slow. Almost everyone stops many times on the long stone staircase. That is normal. Up here, the only sounds are the wind and your own breathing.

At the top, the view opens in both directions. Behind you lies the valley you climbed. Ahead, the trail drops into another valley and then rises again. The descent can feel harder on the knees than the climb was on the lungs. The steps are uneven, because Inca builders shaped each stone to fit the slope rather than to match a standard size. Take your time here. Rain can make the stone slippery, and the drop is long.

The third day is, for many walkers, the most beautiful. The trail passes a series of Inca sites, each one placed with great care. There is Runkurakay, a small round structure on the slope. Then Sayacmarca, a compact settlement perched on a narrow ridge. Later comes Phuyupatamarca, whose name is often translated as town above the clouds. On many mornings, you will understand why. Clouds fill the valleys below, and the ruins seem to float above a white sea.

As you descend, the landscape changes completely. The dry grass of the high passes gives way to cloud forest. Moss covers the stones. Ferns and bromeliads hang from the trees, and wild orchids grow along the path. The Inca even cut a short tunnel through the rock on one stretch of the route. Then you reach Wiñay Wayna, a set of terraces and fountains that falls down a steep mountainside. Its name means forever young in Quechua, the main language of the Inca and of many Andean people today.

On the final morning, groups wake in the dark and walk the last stretch toward Inti Punku, the Sun Gate. This stone gateway sits on a ridge above Machu Picchu. From here, you see the whole site for the first time. Machu Picchu was built in the fifteenth century, probably as a royal estate for the Inca ruler Pachacuti. The Spanish never appear to have found it. It became known to the wider world after the American explorer Hiram Bingham reached it in 1911.

A few practical truths will help. You cannot walk the Classic Inca Trail alone. Every hiker needs a permit and must travel with a licensed guide through an authorised operator. Permits are limited each day, so many people book months ahead. The trail also closes for about one month each year for maintenance. Spend a few days in Cusco or the Sacred Valley before you start. Your body needs time to adjust to the altitude.

For now, stand still and look around you. The river is still roaring below. The terraces of Ollantaytambo are still climbing the hillside, as they have for centuries. Somewhere ahead, a stone step waits that someone placed by hand long ago. Over the coming days, thousands of those steps will carry you toward the Sun Gate. When you set off, look down now and then. The road under your feet is part of the story.