Kamphaeng Phet/Cha Kang Rao's sister city on the opposite bank of the Ping River is even older. Its fortification and temple ruins are however in a worse state of preservation. Unlike on the other bank, there is no actual park with fence, cashier and trim paths, but the ruins are simply dispersed among the landscape, widely ignored by locals and tourists alike. The only historic temple that is still in use, is Wat Phra Borommathat (see below, in the temples section).