Þorri is a traditional midwinter festival celebrated in Iceland, typically occurring in late January to early February. It marks the beginning of the Þorri month in the Icelandic calendar, which is associated with the Norse god Þorr and symbolizes the return of longer days and the end of winter's harshness. The festival is characterized by feasting on traditional foods, including fermented shark and sheep's head, known as Þorramatur. During Þorri, communities come together to celebrate with music, dancing, and storytelling. The festival often includes the wearing of traditional Icelandic clothing, and many people participate in various cultural events. It serves as a way to honor Icelandic heritage and foster a sense of community during the cold winter months.