The document provides a map and description of the classic 4-day, 3-night Inca Trail trek to Machu Picchu. It details what hikers can expect to see and do each day, including climbing over mountain passes, visiting Inca ruins along the way, and camping at designated sites. The final day involves hiking to the Sun Gate for views of Machu Picchu, then exploring the ruins before taking a train back to Cusco from the town below. Booking the trek far in advance is recommended due to its popularity.