The Inca Bridge at Machu Picchu is a slim, cliff-cut passage at the western edge of the citadel. It was part of a defensive back route, carved into a sheer face above a long drop.
The bridge itself is a short span of logs on a stone ledge. In Inca times, those logs could be pulled back to block the route. The engineering is small-scale but reads clearly on the ground; you can see exactly how the Inca intended it to work.
The walk to the bridge is a short side trail off the main circuit and takes 30–40 minutes return. It is flat with a long drop to one side, so people with vertigo should think twice. The views over the Urubamba and the surrounding Andes are the payoff.
Book at Peruways and pick an entry that includes the side trail.
