One of the major and vital rivers in Thailand is Chao Phraya River. It has low alluvial plain that forms the center of the country. Chao Phraya flows through 10 provinces in Thailand, including Bangkok, before exit into the Gulf of Thailand.
Chao Phraya River is the confluence of four rivers, Ping, Wang, Yom and Nan rivers which originally came from the North of Thailand. Ping and Wang rivers join together in Tak province and become Ping River. Yom River combine with Nan River in Nakhon Sawan province and become Nan River. These two rivers, Ping and Nan, continue flowing and meet at Tambol Pak Nam Pho, which is the point where Chao Phraya River begins. Chao Phraya River continues to flow down south and pass through Bangkok before ending in the Gulf of Thailand in Samut Prakan.
Bangkok is divided into two sides by the Chao Phraya River and there are many major bridges that cross the river from one side of Bangkok to the other side. Here are some example bridges: the Rama VI railroad bridge, Phra Pin-Klao Bridge, Rama VIII Bridge - a single tower asymmetrical cable-stayed bridge, Rama IX bridge - a semi-symmetric cable-stayed bridge, and Mega Bridge.
Chao Phraya River is a main water transportation artery. There are many transportation, such as long-tail boat services, express boats, and ferries that take people to places along the river. There are more than 15 boat line running on the rivers and canals in Bangkok as well as commuter lines. Chao Phraya River also offer tourists to dine out on a cruise to absorb the atmosphere with magnificent night lights along the river in Bangkok