Chao Phraya River
The Chao Phraya River begins at the confluence of the Ping and Nan river at Nakhon Sawan, running south for 372 km to the Gulf of Thailand through Uthai Thani, Chainat, Singburi, Ang Thong, Ayutthaya, Pathum Thani, Nonthaburi, and Bangkok.
Old maps name the river Mae Nam, the Thai word for river. Chao Phraya is also a Thai nobility title, which can be translated as General.
River taxis run from central Bangkok to Nonthaburi Pier. A trip down the river on one of these is a must when visiting Bangkok.