Prachinburi used to be a very prosperous town with beautiful waterfalls and canals which are very popular among nature adventurers.

In the old days, Prachin Buri had a long history of civilization of about 800 years ago, since the Dvaravati period. The ruined town of Muang Si Mahosot at Tambon Khokpip, Amphoe Mahosot was discovered. At Ban Khok Kwang, Amphoe Si Mahosot, east to Mueang Si Mahosot, there was an ancient community at the same period as Muang Si Mahosot.