The locals commonly refer to it as "Koh Klang," located in the heart of the city behind the provincial hall. Covering an area of approximately 70 rai, it was once the site for the execution of prisoners. Today, it has transformed into a public park and health garden for the community. In front of this space stands the Phra Buddha Angkhiros Hall, a traditional Thai structure with a four-sided roof that houses the Phra Buddha Angkhiros, which is considered the sacred Buddha statue of Rayong.