🔄 Updated 21 Jun 2026
Short answer: For riverside towns and strolling choose Nong Khai or Nakhon Phanom (Laos views); for the Indochina market, Mukdahan; for an old wooden-house town, Chiang Khan (Loei); and for cliffs, rapids and the two-color river, Ubon Ratchathani (Pha Taem, Sam Phan Bok).
The picks, ranked
Nong Khai
An easygoing riverside town with a Mekong promenade, the Tha Sadet market, the Sala Kaew Ku sculpture park and the Naga fireball phenomenon around the end of Buddhist Lent.
Nakhon Phanom
A scenic riverside town with mountain views across to Laos, the sacred Phra That Phanom, a Mekong walking street and old French-Vietnamese architecture.
Mukdahan
A border riverside town with the Indochina Market selling Lao and Vietnamese goods, the Ho Kaew tower with city views, and the Friendship Bridge across to Savannakhet.
Chiang Khan (Loei)
A Mekong town of old wooden houses with an evening walking street, dawn sticky-rice alms and mist at Phu Thok — the most popular riverside town in the cool season.
Ubon Ratchathani
Lower Isan on the Mekong, with Pha Taem (prehistoric cliff paintings), Sam Phan Bok (the Mekong’s “grand canyon,” best in the dry season) and the two-color river at Khong Chiam.
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