evidence: The Mount Fitz Roy hike (Laguna de Los Tres) is without a doubt one of the best hikes in Patagonia (and arguably South America). This incredible hike takes you right to the base of the famous Mount Fitz Roy, the face of Patagonia. Located in Los Glaciares National Park in Argentina, Mount Fitz Roy towers over the small mountain town of El Chalten. Each year, thousands of visitors head to the area with the hope of completing the iconic hike and getting up close and personal with Fitz Roy itself. [...] The Mount Fitz Roy hike (also known as Laguna de Los Tres) is in Los Glaciares National Park near the town of El Chalten. It’s one of the best hikes in Argentina and all of Patagonia.