The Chao Phraya Dam is Thailand's first large-scale diversion dam, located in Sapphaya District, Chainat Province. It plays a vital role in water management for agriculture and flood control throughout the lower Chao Phraya basin. The dam crest provides stunning views of the vast river and fresh air, making it a popular recreational area where visitors can relish breathtaking sunsets over the water. A visit to this landmark offers a unique chance to witness engineering prowess seamlessly integrated with the local way of life and the natural splendor of the Chainat region.