Kaeng A Hong

Kaeng A Hong is a natural rapids and viewpoint on the Mekong River in Khai Si Subdistrict, Mueang Bueng Kan District, Bueng Kan Province, northeastern Thailand. It is known as a stretch of rocky rapids and whirlpools in the middle of the Mekong, visible in the dry season when water levels are low. The site is culturally significant due to local Naga beliefs and its proximity to Wat Ahong Silawat.

Visitors can expect a wide, rocky stretch of the Mekong River with exposed boulders, rapids and a large whirlpool during low water season. The site has a riverside viewpoint pavilion and steps leading toward the riverbank for observing the rapids and views across to Laos on the opposite bank. The adjacent Wat Ahong Silawat temple complex is often visited together with the rapids. The surroundings are open and natural with river scenery and local food stalls nearby.

Kaeng A Hong is considered a sacred site in local Isan belief associated with the Naga (serpent) of the Mekong River. The adjacent Wat Ahong Silawat is an important Buddhist temple on the riverbank where devotees pay respect and make offerings related to Naga legends. The rapids are traditionally regarded as the deepest point of the Mekong in Thailand.