Trekking route and camping on a 39 km / 24 miles journey. The longest road starts at Qoriwayrachina, at km 82 of the railroad to Machu Picchu. It goes through different ecosystems, colossal archaeological sites in landscapes rich in flora and fauna, until it reaches de citadel of Machu Picchu. A circuit to Salkantay (6271 masl / 20574 fasl) starts from this route. Contact a specialized travel agency. Degree of difficulty: intermediate. Minimum time: 4 days.