Khlong Thailand Khlong Floating market of Damnoen Saduak, Ratchaburi province A khlong also commonly but less correctly called a klong; is a canal in the central plain of Thailand spawned by the Chao Phraya, the Ta Chin, and the Mae Klong rivers. The capital Bangkok was crisscrossed by them and so gained the name Venice of the East. The khlongs were used for