The Legend of Pha Nang Khoi signage is located at the Pha Nang Khoi Cave in Rong Kwang District. It narrates the tragic love story between Princess Aranyanee of the Saen Wee Kingdom and a commoner horse handler. According to legend, the couple fled to this cave while the princess was giving birth. When her father's soldiers arrived and fired an arrow at her lover, the princess shielded him and was fatally wounded. In her final moments, she vowed to wait for him forever, eventually turning into stone. The sign serves as a historical guide to this 800-year-old folklore, explaining the origin of "Hin Nang Khoi," a rock formation resembling a woman cradling her child.