What is Patagonia?

Patagonia is an austral region in the southern cone of South America covering roughly 1,043,076 km² shared between Argentina (760,000 km², ~73%) and Chile (240,000 km², ~27%). Geographically it is defined as the territory south of the Colorado and Barrancas rivers in Argentina (parallel 36° S) and south of the Biobío river in Chile (parallel 37° S), extending to Cape Horn (56° S, the southernmost point of South America). It is one of the least densely populated regions in the world (~2 inhab/km² on average) and one of the most vast and diverse: from the arid steppe in the east (Argentine Patagonia) to glacial Andes and Fuegian forests in the west and south (shared between both countries). It is famous for glaciers (Perito Moreno, Upsala, Torres del Paine), deep lakes (Nahuel Huapi, Argentino), unique fauna (guanacos, rheas, southern right whales, penguins), and as the Antarctica gateway from Ushuaia.

The name comes from the chronicler Antonio Pigafetta, member of Magellan's expedition that reached the region in 1520. Pigafetta described the native Tehuelches as tall giants with big feet (the Tehuelches wore guanaco-leather boots that left huge footprints in the snow), and called them "Patagones". Magellan reportedly exclaimed "Ah, Patagón!" on seeing one. The region was then called "Land of the Patagones" or "Patagonia". The term "Patagón" probably derives from the character "Patagón" in the chivalric novel "Primaleón" (Spain, 1512), a mythical giant — Spanish explorers had the literary character in mind when applying the name to the real Tehuelches. Other etymologists suggest the Mapuche origin "Pata-gun" (big feet) or "Pa-thakuna" (people from the south). The name was established in 1525 with Pigafetta's account.

The 5 must-see destinations in Argentine Patagonia are: (1) Bariloche (Northern Patagonia, alpine lakes and forests, chocolate capital, skiing at Cerro Catedral); (2) El Calafate (Southern Patagonia, Perito Moreno Glacier + Estancia Cristina + Upsala); (3) Ushuaia (Tierra del Fuego, "end of the world", Estancia Harberton + penguins, Antarctica gateway); (4) El Chaltén (Argentina's trekking capital, Fitz Roy and Cerro Torre); (5) Península Valdés (whale-watching Jun-Dec, UNESCO Heritage). Others: Puerto Madryn (Punta Tombo penguins), Esquel (La Trochita steam train, Los Alerces NP), San Martín de los Andes (Lake Lácar, Seven Lakes Route), Villa La Angostura (Arrayanes Forest), Comodoro Rivadavia (oil capital).

Patagonia is vast — depends on what you want to see: (1) Calafate only (Perito Moreno): 4 days minimum; (2) Calafate + Bariloche: 8-10 days; (3) Calafate + El Chaltén: 7 days; (4) Calafate + Ushuaia: 7-8 days; (5) "Complete" Argentine Patagonia (Bariloche + El Chaltén + Calafate + Ushuaia): 14-18 days; (6) Complete Patagonia with Chile (add Torres del Paine 3-4 days): 18-22 days. For a sensible first visit: 10-12 days focused on Bariloche + Calafate + El Chaltén or Bariloche + Calafate + Ushuaia. Distances are huge (Bariloche-Calafate 1,500 km, Calafate-Ushuaia 700 km in straight line) — flights are the only efficient way to move.

Patagonia has four distinctly different climates by latitude and longitude: (1) Northern Patagonia (Bariloche, San Martín de los Andes): temperate-cold with summer 18-25°C and winter 0-10°C, rainfall 800-3,000 mm/year (more in cordillera), temperate forests; (2) Coastal Patagonia (Madryn, Puerto Deseado): arid-temperate with extreme winds, summer 18-25°C winter 5-12°C, rainfall <250 mm/year (steppe); (3) Southern Patagonia (Calafate, El Chaltén): cold-temperate with summer 8-22°C winter -5 to 5°C, constant strong winds 30-80 km/h, steppe landscape; (4) Tierra del Fuego (Ushuaia): sub-Antarctic with summer 8-15°C winter -3 to 5°C, rainfall 500-700 mm/year well distributed, extremely long days in summer (17h+ light) and short in winter (5-6h). Wind is the Patagonian constant: the "Patagonian wind rule" doesn't forgive — always carry windproof jacket, hat and gloves even in mid-summer.

It depends on the destination: (1) Calafate, El Chaltén: October-March (long days 15-17h light, 8-22°C, accessible glacier). June-August closes many excursions; (2) Bariloche: summer (Dec-Mar) for lakes and trekking; winter (Jun-Sep) for skiing at Cerro Catedral; (3) Ushuaia: year-round, summer (Dec-Mar) with extremely long days and all excursions running, base for Antarctica; winter ideal for skiing at Cerro Castor and snow landscape; (4) Península Valdés: June-December for southern right whales (peak September-October); (5) Penguins at Punta Tombo: September-March (highest concentration Nov-Feb). Best universal month to combine destinations: November or March (no extremes, high availability, moderate prices).

Patagonia is Argentina's most expensive region: ~30-50% more expensive than Buenos Aires due to remoteness and concentrated tourist season. Flights from Buenos Aires: AEP-BRC (Bariloche) USD 120-220 one-way; AEP-FTE (Calafate) USD 180-320; AEP-USH (Ushuaia) USD 200-360. 3-4 star hotels: USD 80-220/night by destination. Food: USD 25-65 dinner. Premium excursions: USD 80-380 per day (Perito Moreno, Estancia Cristina, mini-trekking). Total cost for a 10-12 day trip covering Bariloche + Calafate + El Chaltén: USD 2,500-4,500 per person. For a 7-day Calafate + Ushuaia trip: USD 1,800-3,500. It's worth doing Patagonia properly — any "cheap" trip ends up bad due to climate and distances.

Both. Patagonia is shared between Argentina and Chile with the Andes as natural divider. Argentine Patagonia (760,000 km², ~73%): the eastern side of the cordillera, arid steppe and glacial lake landscape, includes provinces of Neuquén, Río Negro, Chubut, Santa Cruz and Tierra del Fuego. Iconic destinations: Bariloche, Calafate, Ushuaia, Chaltén, Madryn. Chilean Patagonia (240,000 km², ~27%): the western side with rainy temperate forests and fjords, includes Aysén and Magallanes regions. Iconic destinations: Torres del Paine, Punta Arenas, Puerto Natales, Castro/Chiloé, Carretera Austral. To combine both: cross at Cardenal Samoré border (Bariloche → Puerto Montt) or Río Turbio (Calafate → Puerto Natales). Torres del Paine is generally visited as a 3-4 day extension from Calafate (via bus to Puerto Natales).