Introduction to the Crazy Monk Wearing a Hat: The Crazy Monk Wearing a Hat, the upper part of the peak is surrounded by round and bare cliffs, resembling a monk wearing a hat, playing crazily by the water. It is commonly known as "Jiu Tan Peak" because the Hakka people like to brew fine wine, so every household has a wine jar. The lush vegetation on the top of the peak resembles a straw jar lid.