Top Things to Do in Ubon Ratchathani

Ubon Ratchathani, the largest province in Thailand's Isan region, is where the Mekong River forms the border with Laos and ancient Khmer trade routes once connected the civilizations of mainland Southeast Asia. Known to Thais simply as 'Ubon,' this city of roughly half a million people is famous for its spectacular annual Candle Festival during Asalha Bucha and Buddhist Lent, when enormous carved-wax sculptures are paraded through the streets in one of the country's most visually impressive celebrations. For international visitors, Ubon offers something increasingly rare in Thailand: an authentic, unhurried cultural experience largely untouched by mass tourism. The province's natural landscape is as compelling as its cultural traditions. The Mekong and Mun rivers carve dramatic gorges, rapids, and rock formations through the countryside, while national parks like Kaeng Tana and Phu Chong Na Yoi protect forest-clad plateaus and thundering waterfalls. Geological curiosities such as the Two-Color River, where the Mun meets the Mekong in a visible line of contrasting sediment, and the sculpted sandstone of Sam Phan Bok (Thailand's Grand Canyon) are within day-trip range. Ubon is also a center of Isan Buddhist culture, with temples that range from ancient forest monasteries to the dazzling modern fluorescent murals of Wat Sirindhorn Wararam. The local cuisine leans toward Lao-influenced flavors: sticky rice, som tam, larb, and grilled Mekong river fish are staples, eaten with an intensity of heat and sourness that distinguishes Isan food from central Thai cooking. The city is well connected by direct flights from Bangkok and makes an excellent base for exploring Thailand's far northeast.