Article body copy On a brisk August morning in Tasermiut Fjord, southern Greenland, I poke my head from the hatch of my family’s 13-meter sailboat to find frost on the deck and a cloudless sky. It’s weather that demands exploring. After my husband and I haul our eight- and 10-year-old sons from bed and row the dinghy to the beach, we begin our trek up Klosterdalen, also known as Monastery Valley, where lichen-covered stone ruins of Viking-era structures rest among a jumble of talus. Sacrificing.