evidence: Torres del Paine with its iconic towers and Los Glaciares National Park, home of the Fitz Roy massif, are two of the most famous parts of Patagonia. With a carefully planned itinerary of at least 9 or 10 days, it's possible to explore both great regions on day hikes from luxury hotels or longer camping treks. We'd recommend at least 2 weeks to explore both national parks, which allows enough time for travelling. With this timescale, you could spend 4 to 5 days in Torres del Paine hiking the famous W Trek and 3 to 4 days in El Chalten, where you could do a few day hikes to some of the most spectacular viewpoints of Mount Fitz Roy.