What are the hardest and easiest treks?

In the Cusco region, Choquequirao is definitely the hardest trek that I’ve done, because the trail is very steep and you have to first descend 2,000 metres of elevation before hiking back up that same amount. The Inca Trail is hard because on the second day you hike over a pass that’s 4,215 metres above sea level.

The easiest is KM104 to Machu Picchu, which is really a day hike but you spend the night in Aguas Calientes and visit Machu Picchu the next morning. Lares can be relatively easy because it’s not a long trek, so you can take it slow.