Best known for
The glaciers and peaks of Patagonia, Iguazú Falls, and the whales and penguins of Peninsula Valdés
The range
From subtropical Iguazú to the Southern Andes and the Atlantic wildlife coast
Why it's special
Perito Moreno's calving glacier, the Fitz Roy spires, and southern right whales off Valdés
Gateway
Buenos Aires is the hub, with domestic flights to Patagonia, Iguazú and the coast