since ancient times, traditional long boat races has been a symbol of Phitsanulok. It is held every September along with various religious rites such as robe-offering ceremony, changing the robe of the famous Buddha image Phra Phutthachinnarat, boat decoration contest, and traditional long boat races eventually. The exciting festival is held on the Nan River, in front of Wat Phra Si Mahathat Woramahawihan.