Kaeng Ahong, famously known as the "Navel of the Mekong," is located at a strategic bend in front of Wat Ahong Silawas in Khai Si, Bueng Kan. According to hydrographic surveys conducted using echo sounders, this location is identified as a deep pool, reaching depths of approximately 196 to 200 meters during the monsoon season. This makes it the deepest point along the entire 4,800-kilometer stretch of the Mekong River. The river’s current, flowing from the north and colliding with massive rock formations at a sharp angle, creates a powerful, permanent whirlpool throughout the year—a rare and formidable physical phenomenon in a major global river system.

Geomorphologically, the area consists of igneous and sandstone formations sculpted by water erosion over millennia into stunning natural art. During the low-water season (March to May), various rock formations and sandbars emerge, including the legendary "Serpent’s Tongue" and "Crocodile Stone." Beyond its aesthetics, Kaeng Ahong serves as a vital natural fish sanctuary. The profound depth and complex underwater crevices along the Thai-Lao border provide a secure habitat for the Mekong Giant Catfish and various rare freshwater species, making the site crucial for both ecological biodiversity and nature-based tourism.

Spiritually, Kaeng Ahong is revered as the "Naga Capital." Local folklore suggests that the deep underwater caverns beneath the whirlpool serve as a gateway to the underworld (Badan), where Nagas gather before ascending to release the Naga Fireballs at the end of Buddhist Lent. This deep-seated faith is reflected in the serene atmosphere of Wat Ahong Silawas, where visitors can experience both the scientific marvel of the river's greatest depth and the cultural sanctity of the region, all while enjoying the scenic views of Paksan in neighboring Laos just across the water.

• From Bueng Kan city center, take Highway 212 (Bueng Kan-Nong Khai Road) heading west for approximately 21 kilometers. There will be clear signs on the right-hand side for Wat Ahong Silawas and Kaeng Ahong. The road is asphalted and easily accessible for all types of vehicles

• Arrive in the early morning to witness the stunning mist and enjoy the fresh Mekong riverside air.

• Plan your visit during the low-water season (March–May) to see the rock formations and rapids clearly.

• For the Naga Fireball festival, it is highly recommended to book accommodation 1-2 months in advance.

• Please dress politely and maintain a respectful silence as the site is within the temple's sacred grounds.

• Strictly follow all safety signs and never attempt to swim in the whirlpool areas under any circumstances

Admission Fees:

• Free entry (Open as a public area and religious site)

Openning Hours:

• Open daily from 06:00 AM – 06:00 PM (For the temple grounds and scenic viewpoints)