A large water dam in the Amphoe Tha Muang away from the city to the South, about 14 km, the dam is the most important development project in the river Mae Klong covering an area 1.2 milion acre in Suphan Buri Province, Kanchanaburi Province, Ratchaburi, Nakhon Pathom, Samut Songkhram and Samut Sakhon 117.50 meters wide, dam length 1,650 meters, above the dam with beautiful scenery.