Hidden away in the province of Nakhon Suwan in the middle of Thailand, you will find Pasaan, the origin of the Chao Phraya River that eventually runs through Bangkok. Formed by the confluence of the Ping River, that flows through Chiang Mai, and the Nan River, originating in the Luang Prabang Range of Nan Province, the rivers come together to form the Chao Phraya River.
Flowing south for 365 kms from the source, through Bangkok, the Chao Phraya River eventually empties into the Gulf of Thailand. With the Ping River to the west and the Nan River to the east, there is a monument marking the confluence of these rivers that is well worth a visit on your drive from Ayutthaya to Bangkok.
We drove from our hotel in Ayutthaya to Pasaan, found here on Google Maps. There is parking reasonably close to the monument and close to a few coffee shops. Entry to the monument is free and you can wander around and take photos at your convenience.
While there is not a lot to see at the monument, you should allow about an hour to explore the site, taking in the magnificence of this natural attraction. Explore the bronze plaque designating the location as the source of the Chao Phraya River. Explore the raised monument with its winglike structures that allow for an elevated views of all three rivers. Finally, explore the sign at the back of the structure that lets you know exactly where you are.
Once you have finished your visit, take some time to support the local coffee shops. It does not seem that they get too many customers as there are not many tourists that visit the site.
Perhaps you would like to explore a little further while in the area? If so, consider one of these hotels in Nakhon Sawan with booking.com or with Agoda.
Another option for day tours is GetYourGuide. Start your planning by considering one of the tours shown below.
Our other posts on Thailand may be found here.
(Visited February 2025)