Bung Samphao, located in the Mahanakorn district of Chai Nat province, is a natural swamp that boasts year-round water. It was once a significant fish farming area and a relaxing retreat in Chai Nat. Today, it has been developed into a cycling paradise, featuring a paved road that encircles Bung Samphao, making it accessible for cyclists. The area is beautifully shaded by surrounding trees, and there are parking facilities and restrooms available for visitors.