Ubon, the city means the land of the beautiful lotus, The river of two colors is full of pleasing species of fish, The banks of the river border attractive sandy beaches and rocks, The city to which scholars and religious flock in droves, The colorful candle festival is glory of the city, Prehistoric paintings on the Pha Taem rock.

Ubon Ratchathani is situated on the banks of the Mun River. Ubon is the provincial capital and its history dates back two centuries, officially in 1780 when King Taksin the Great was appointed the first ruler of this region and gave the city its name.

The city was ruled by four semi-independent rulers until 1882 when a new ruler was elected and the city became part of the Kingdom of Siam. The provincial capital is 629 kilometers from Bangkok and has various plateaus and mountains that are crossed by the Mun River. The sandstone cliffs along the Mekong River serve as a natural border between Thailand and Laos.

The region where Ubon Ratchathani borders Cambodia and Laos and where the Mekong flows into Cambodia is known as the "Emerald Triangle" in recognition of the beautiful green forests that characterize this region. Ubon's natural appeal is enhanced by the Phu Chong Nayoi and Pha Taem National Parks. Both are considered to be one of Isan's most pristine and under-visited nature reserves. Ubon Rachathani is the largest of the northeastern provinces of Thailand. The main attraction of Ubon is the annual Candle Festival, a beautiful Buddhist event with a lot of charm.