The Inca Trail Permit System was created by the Peruvian government to help prevent serious overcrowding, overuse, and erosion on the historic Inca Trail. A limited number of total permits are available each day to hike the Inca Trail. Permits are required for all hikers – including porters, guides, and trekking customers. The Inca Trail is the classic trail created in the 15th century by the Incas to get to Machu Picchu. The 51-55 mile trail enters Machu Picchu through the famous Sun Gate. The tightly controlled number of daily hiking permits is why it’s essential to book your Inca Trail Trek early, as permits sell out 3 to 6 months in advance, for popular May through August trekking dates. Andean Great Treks has a 99% success rate at helping customers get the permit dates they want, with advance planning.