The waters of Band-i-Amir Lake are thought to cure many ailments, including infertility. If a woman has not conceived soon after marriage, her husband’s family will often travel for days-by car, donkey, camel, or foot-to bring her here. Most Afghans don't know how to swim, so the woman is tethered around the waist as she enters the lake. The husband follows behind and, as is the custom, pushes her into the frigid water three times.