We’d argue for the Ausangate Circuit in Peru — BUT it has gotten a lot more popular in recent years.
Many would name the Paine treks in Chile.
The newest of the best hikes in South America is the Huemul Route out of ut of El Chaltén, Argentina.
Click PLAY or watch it on YouTube. Especially if you want something even more adventurous.
Check out Huemul information page.
besthike.com 