Discover

The 'Mae Klong' () is a river in western Thailand. The river begins at the confluence of the Khwae Noi or Kwai Sai Yoke and the Khwae Yai River or Kwai Si Sawasdi in Kanchanaburi, pass Ratchaburi Province and empties into the Gulf of Thailand in Samut Songkhram.
In the 1960s the upper stretch of the river until the town of Kanchanaburi was renamed to Khwae Yai (แควใหญ่, ''big tributary''), as the famous Bridge on the River Kwai spanned the Mae Klong and not the Khwae (Kwai) river. However the actual origin of the river is in the Khuean Srinagarindra National Park in the north of Kanchanaburi Province.
Note that an early portion of Khwae Yai River in Amphoe Umphang, Tak Province is also called 'Klong River'. It becames known as Khwae Yai River when it flows into Kanchanaburi Province.