Introduction to Guan Gong’s Testing Stone: Legend has it that when Guan Yu came to King Ji’s Gu to suppress bandits, he came to the feet of King Ji’s Gu and was moved by the beautiful scenery of Wang Ji’s Gu. He also remembered what happened to King Ji back then and admired his majesty and tragedy. After this encounter, anger burst out of his chest, so he pulled out the Qinglong Yanyue Sword and slashed at the cliff. All the protruding cliffs here were chopped down, so this place was named "Guan Gong's Testing Stone".