Wat Okat Si Bua Ban

Wat Okat Si Bua Ban — known locally as Wat Okat, “okat” meaning opportunity in Thai — is one of the most visited temples in Nakhon Phanom, sitting on the Mekong riverbank on Sunthonwichit Road, right next to the town’s Indochina Market and across from the Nakhon Phanom immigration checkpoint. Local records date the temple’s construction to 1451 (BE 1994), during the era associated with the semi-legendary Kingdom of Si Khotrabun that once held sway over this stretch of the upper Mekong; it received a royal sima boundary — formal recognition as an ordination site — later, in 1738 (BE 2281). The temple was originally known as Wat Si Bua Ban (or, in full, Wat Phra Si Bua Ban Phra Chao Tio) before later renovations saw it renamed Wat Okat, with today’s compound name combining both.

The temple’s defining feature is a pair of wooden Buddha images, Phra Tio (พระติ้ว) and Phra Thiam (พระเทียม), both carved in the Maravichai posture — the gesture of subduing Mara — and kept together in the viharn behind a protective barrier, with replica images placed in front for everyday veneration. According to temple history, Phra Tio began as a wooden roller used to launch a Si Khotrabun king’s boat; believers held the timber to be inhabited by a guardian spirit, and craftsmen later carved it into a Buddha image traditionally dated to 784 CE (BE 1327). When a fire threatened the shrine housing it, the community — fearing the original was lost — commissioned a near-identical replacement, Phra Thiam, only for Phra Tio to reappear afterwards, according to legend recovered from the Mekong itself. Both images have stood together at the temple since 1738.

The temple draws a steady stream of devotees who come specifically to pray for business opportunities and employment, a tradition tied directly to the meaning of “okat.” The major annual event falls on the full moon of the sixth lunar month, when both images are ceremonially bathed and carried in procession through town — locals tie the ritual to hopes for timely rain and a good harvest as much as personal luck.

Insider Tip: Pair a visit with a walk along Nakhon Phanom’s Mekong riverside promenade, right outside the temple gate, the adjoining Indochina Market for handicrafts and food from across the river in Laos, and the Nakhon Phanom Walking Street a few blocks along if you’re there Friday to Sunday evening.

Watch out: The festival day draws large crowds and blocks nearby streets — visit outside the sixth lunar month’s full moon if you want a quiet look at the images rather than a procession.

Entry is free. Dress modestly with shoulders and knees covered, and remove shoes before entering any building.