evidence: The majestic Mount Fitz Roy is a famous landmark in Argentina’s side of Patagonia. If you’re planning to see the spectacular mountain up close the hike to Laguna de los Tres is your best bet. [...] Mount Fitz Roy from Laguna de los Tres [...] Laguna de Los Tres and Mt Fitz Roy are parts of the Parque National de los Glaciares in El Chalten, Argentina. There is no entrance fee for the treks in this area (El Chalten) of the national park.