formerly known as Kuimang Hot Spring, located 130 km. from Kanchanaburi between Km. 105 – 106 on Highway 323. It is a well of natural hot water of 45 – 55 degrees Celsius discovered beside a stream of cool water by Japanese troops during WWII and two cement wells were then constructed at the site. It is believed that the water from this hot spring has a healing property for various ailments such as beriberi and rheumatism. A hot spring bath in the well is available.