Guidebook to eight hiking and trekking routes in Chile's Torres del Paine National Park and Argentina's Los Glaciares National Park. Three of these are multi-day treks, and four of them shorter day walks, as well as one multi-day trek in Argentina's Los Glaciares national park, also included are several excursions from Puerto Natales and El Calafate. Routes are arranged starting with the 10 -11 day Torres del Paine Circuit, (also known as the 'O' Circuit), followed by the shorter Half Circuit (the 'W') which can be walked in 4-5 days. The guidebook helps walkers and trekkers venture into Patagonia with confidence and includes advice on getting to and around the regions, languages, visa, currency, accommodation facilities in the National Parks as well as useful guidance on what to take and expect on the treks.