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Inca Trail Marathon to Machu Picchu 
Explore world's best races Considered the most difficult marathon in the world
The race
While the 26.2 miles along rocky Inca trails, tunnels and steps is a true marathon distance, you won’t see any bibs or spectators along the route. But for the experienced trail runner, it’s a strenuous (gain of 10,400 feet and loss of 11,000 feet in elevation) and rewarding journey to the ancient lost city of Machu Picchu.
