Hiking the Inca Trail

The Inca Trail to Machu Picchu
JenFu Cheng / Alamy

Upward
Concern that overuse of the trail will lead to erosion has led the Peruvian government to place a limit on the number of people who may hike it each season. Currently access is limited to a maximum of 500 people per day, including guides and porters.

Get the Latest Photos from Time.com
Get TIME photos and pictures of the week delivered directly to your inbox.