The Four-Faces Rivers of Phnom Penh

The Chaktomuk River is one of Cambodia’s most iconic natural landmarks, located at the remarkable meeting point of four waterways: the Upper Mekong, Lower Mekong, Tonle Sap, and Bassac Rivers. More than a geographical confluence, Chaktomuk is the beating heart and living soul of Phnom Penh, where history, culture, and nature come together.

The name Chaktomuk, meaning “Four Faces,” reflects the unique four-directional branching of the river system. This distinctive feature gave rise to the historic name of Phnom Penh, once known as Krong Chaktomuk. King Ponhea Yat bestowed upon the city the title “Krong Chaktomuk Serei Mongkol,” or “The Auspicious City of Four Faces,” highlighting its strategic and symbolic importance.

The river system is renowned for its fascinating hydrology. During the dry season, the Tonle Sap River flows into Chaktomuk, while the Bassac River carries water southward toward Vietnam. In the rainy season, the Tonle Sap River reverses its flow, directing water from Chaktomuk back toward Tonle Sap Lake, creating one of the world’s most unique natural phenomena.

As the convergence point of four major rivers, Chaktomuk plays a vital role in Cambodia’s environment and economy. It supplies clean water to millions of residents in Phnom Penh and supports a wide range of industrial, agricultural, and commercial activities. The river is also a key transportation corridor, connecting Phnom Penh to regional trade routes. Cargo vessels, passenger ferries, and traditional fishing boats regularly travel through its waters, while Phnom Penh Autonomous Port serves as the country’s principal international river port.

Each year, the Chaktomuk River becomes the center of celebration during Cambodia’s famous Water Festival. Held when the Mekong River begins to recede, the festival features thrilling boat races and attracts visitors from across the country. While races take place in many provinces, the largest and most spectacular festivities are held on the Chaktomuk River in front of the Royal Palace, creating a vibrant atmosphere of excitement and national pride.

As evening approaches, Chaktomuk reveals another side of its charm. Sunset cruises offer visitors a memorable opportunity to experience Phnom Penh from the water. As golden light reflects across the river, passengers can admire panoramic views of the city skyline, observe the daily activities of local fishermen, and enjoy the refreshing river breeze. The tranquil journey provides a perfect setting to appreciate the beauty and rhythm of life along the waterfront.

Today, dozens of cruise boats and traditional vessels operate on the river, offering journeys ranging from one to two and a half hours. Most cruises depart around 5:30 PM and return by 7:30 PM, allowing visitors to witness Phnom Penh’s stunning transition from day to night. With ticket prices for international visitors starting at approximately US$6, a cruise on the Chaktomuk River remains one of the city’s most accessible and unforgettable experiences.