The icy wind whipped and swirled, nearly knocking me off my feet. Snow lashed my face. My husband and I struggled to see the Torres del Paine summits through the fog. After a wet, cold, three-hour uphill hike, I hoped the slushy precipitation might clear, even for a moment, so I could glimpse the Torres — the trio of granite mountain peaks that are arguably Patagonia’s most iconic sight.