Answer:
1) Machu Picchu, 2) Cuzco, 3) Apurímac River, 4) 500, 5) Inquilpata, 6) mochilero.
Explanation:
1) El Camino Inca leads from Cuzco to <em>Machu Picchu</em>.
2) The Inca's network of caminos across the Andes converged on <em>Cuzco</em>.
3) The four-day hike along the Inca Trail start at a suspension bridge over the <em>Apurímac River</em>.
4) The National Culture Institute of Peru limits the number of hikers to <em>500</em> per day.
5) <em>Inquilpata</em> is a town named for the pink orchid native ot the area.
6) In Spanish, a backpacker is <em>mochilero</em>.