Phra Nakhon Khiri or Khao Wang hill has been the place of the annual fair of Phetchaburi every year. It combines with the Phetchaburi Red Cross Fair for the public and tourists to participate in the activities and make merits with the Phetchaburi Red Cross Society. Activities in the fair there are the ceremony is to worship the city pillar shrine and the ancestral kings, exhibition to honor the ancestral kings and sustainable economy,