GUERNSEY. November 17, 2019. In Guernsey folklore, the Loup Garou is a legendary werewolf known for its shape-shifting abilities, transforming from human to wolf under the full moon. Often depicted as a sinister creature, it serves as a cautionary tale against immoral behavior, warning that those who stray may be cursed to become the Loup Garou themselves. This intriguing legend adds a captivating layer to the island's rich tapestry of supernatural tales.