To the End of the World: From Patagonia to Cape Horn

It’s a five-hour ride from Torres del Paine National Park to Punta Arenas, where I will board the Stella Australis cruise ship to Ushuaia, Argentina.  I wander on a street parallel to the Strait of Magellan, looking for the port, and pass a sleeping stray dog; he springs up immediately and starts walking ahead of…