On Day 3 of the Inca Jungle expedition, hikers reach Hidroeléctrica (Hydroelectric Station), the road’s end deep in the jungle canyon. From here, vehicles cannot proceed further. Travelers embark on a scenic, legendary 11-kilometer (6.8-mile) flat walk alongside the railway tracks leading directly to Aguas Calientes (Machu Picchu Pueblo).
The Geography of the Urubamba River Loop
This rail corridor skirts the base of the massive granite mountain ridge upon which the ancient city of Machu Picchu sits. Looking directly upward through the cloud forest canopy, you can catch fleeting glimpses of the citadel’s agricultural terraces perched 600 meters above the canyon floor.
| Milestone | Distance from Start | Estimated Walking Time | Features & Sights |
|---|---|---|---|
| Government Control Station | 0 km | Start point | Passport check, local fruit stalls, water refills |
| Intihuatana Bridge Crossing | 3.5 km | 45 minutes | Footbridge over Urubamba River, lush butterfly gardens |
| Machu Picchu Base Station | 7.0 km | 1 hour 45 mins | Ruins bridge entrance, trail branch to Inca Stairway |
| Aguas Calientes Town Center | 11.0 km | 2 hours 45 mins | Hotels, artisan markets, train station, restaurants |
Rules for Walking Beside the Train Tracks
- Walk on the Packed Dirt Paths Beside the Rails: Avoid stepping on the uneven wooden railway ties or sharp track gravel, which cause ankle strain. Smooth, wide pedestrian footpaths run parallel to the rails.
- Listen for the Horn: PeruRail and Inca Rail trains operate regularly along this route. Modern diesel locomotives blow their loud horn well in advance. Step at least two meters off the tracks whenever a train approaches.
- Keep Your Passport Accessible: At the official Hidroeléctrica checkpoint, park rangers record the names and passport numbers of all entering hikers for safety monitoring.
Timing Advice
Begin the walk from Hidroeléctrica by 2:00 PM at the latest. Arriving before dusk (5:30 PM) ensures you reach Aguas Calientes in daylight to check into your hotel and shower before dinner.
Fascinating Track Facts
- Vegetation Canopy: The trail is almost entirely shaded by wild bamboo, bromeliads, giant ferns, and flowering orchids, keeping temperatures comfortable even on sunny afternoons.
- Alternative Train Ride: For tired hikers, a 30-minute train operates between Hidroeléctrica and Aguas Calientes, although 95% of Inca Jungle trekkers prefer the scenic walk.
