From the end of August to September, the Chao Phraya River will be hosting rehearsals for the Royal Barge Procession, offering visitors a rare chance to see one of Thailand’s grandest ceremonial traditions in motion.
The Chao Phraya is Bangkok’s spiritual lifeblood, flowing through the city and feeding a vast network of canals.
In the rainy season, brown water runs past ferry piers and concrete embankments. Passenger boats negotiate their way through the current, and long-tail boats ferrying holidaymakers throw spray up along the river. Commuter ferries shuttle from pier to pier between Bangkok and Thonburi, carrying passengers back and forth across the Chao Phraya. Beyond the east and west banks rise temple roofs, the Grand Palace, towering apartment blocks and glittering spires.
Then, somewhere upstream, flashes of gold appear.
Long, slender barges travel across the water. Hundreds of oars rise and fall in unison as ornate prows catch the tropical light. The formation continues to grow until much of the Chao Phraya is occupied by boats and oarsmen. The spectacle could almost transport you back to the eighteenth century, when boats were the main way to travel through Bangkok and beyond.
This amazing sight is the Royal Barge Procession, running through one of its rehearsals ahead of November's Royal Kathin Ceremony.
Between August and October 2026, rehearsals take place along the Chao Phraya ahead of the ceremony on November 6. Spectators can watch the practice from the banks of the river between Krung Thon Bridge and Wat Arun.
The procession offers a chance to follow the Chao Phraya through historic Bangkok, where life once revolved around the river.
The rehearsal begins upstream at Wasukri Pier, where the barges rest at the Royal Barges Museum.
From Wasukri Pier, the royal fleet heads down the Chao Phraya, passing Phra Sumen Fort and gliding beneath Somdet Phra Pinklao Bridge. The royal fleet continues past Siriraj Hospital, the Grand Palace and the Royal Thai Navy Auditorium. Wat Arun (the Temple of Dawn), its distinctive central prang rising above the western bank, is the royal fleet’s destination.
The rehearsals pass through some of the oldest parts of Bangkok.
Around Phra Sumen, traces of Bangkok's fortified city survive beside neighbourhood streets, temples and old riverside communities. Downstream, Pinklao Bridge sweeps across the water towards Thonburi.
Beyond Pinklao Bridge, the Grand Palace comes into view on the eastern bank. Across the water lies Thonburi, capital of Siam before Bangkok was established on the opposite side of the Chao Phraya River. Ferries make the crossing every few minutes, linking neighbourhoods where lives and legends developed on both sides of the city’s spiritual bloodline.
On rehearsal days, this busy stretch of river is given over to the royal fleet.
The scale becomes apparent as the barges come into view.
The procession comprises 52 royal barges manned by 2,200 Royal Thai Navy personnel. Arranged in five columns and three lines, the formation extends 1,280 metres along the river and 90 metres across it.
From the riverbank, attention shifts from scale to precision: rows of paddlers, oars lifting almost simultaneously and narrow hulls holding their positions against the current. Each boat maintains its place as the fleet moves downstream in formation.
The surroundings change along the way.
Temple roofs give way to bridges. Older riverside buildings stand within sight of modern towers. People gather along waterfront railings and near temples as the royal fleet passes.
Among the 52 barges, one is unmistakable.
The Suphannahong Royal Barge, the principal vessel of the fleet, stretches low across the water before terminating in an elaborate gilded swan's head and neck.
The present Suphannahong was built during the reign of King Chulalongkorn, and completed in 1911 under King Vajiravudh. The barge’s origins, however, date back to the Ayutthaya period. In 1992, Suphannahong received the World Ship Trust Maritime Heritage Award.
Seen at rest, a royal barge can be admired for the intricacy of its craftsmanship. On the Chao Phraya, propelled by paddlers and surrounded by the rest of the fleet, its ceremonial function becomes even more spectacular.
Watching a rehearsal also encourages a slower journey through historic, riverside Bangkok.
Instead of racing between the Grand Palace and Wat Arun, you can make the river part of the experience: crossing by ferry, waiting beside a pier or watching long-tail boats work their way through the current. Many riverside restaurant and cafes also offer their best seats to those wishing to watch.
Most visitors encounter the Grand Palace, Wat Arun and Bangkok's old riverside neighbourhoods as separate stops. Following the procession puts them back into their geographical context. Temple compounds face the water because the river was once their principal approach, while ferries continue to connect communities separated by only a few hundred metres of water.
For travellers, the rehearsal provides a reason to spend time beside the Chao Phraya rather than treating it simply as something to cross between attractions. From the riverbank, the relationship between Bangkok’s temples, palaces, communities and waterways becomes easier to understand.
For the royal barges, the procession culminates not at a palace but at a Buddhist temple.
Eventually, Wat Arun comes into view. Its central prang rises from the western bank. The Temple of Dawn, as it is also known, is not simply one of Bangkok's best-known riverside landmarks. It is the royal fleet’s destination for the Royal Kathin Ceremony.
Spectators have several opportunities to see the barges before the Royal Kathin Ceremony on November 6.
Rehearsals are scheduled for August 17, 20 and 27; September 3, 8, 17 and 23; and October 2, 8 and 15 October. Full-dress rehearsals take place on October 21 and 28. Spectators can watch from both banks of the Chao Phraya between Krung Thon Bridge and Wat Arun.
The full-dress rehearsals offer the most complete preview of the ceremony, although earlier practices also provide a chance to see the fleet moving through central Bangkok.
For the most memorable views, spectators should choose the riverbank based on the backdrop.
From the Bangkok side around Tha Tien and Nagaraphirom Park, the royal barges can be seen gliding across the Chao Phraya with Wat Arun’s iconic prang rising behind them. On the western bank, viewpoints around Siriraj and Wat Rakhang offer the reverse perspective, placing the fleet against the Grand Palace and Bangkok’s historic skyline.
Further upstream, the Phra Sumen and Pinklao areas provide wider views of the procession, better suited to appreciating the scale and formation of the 52-barge fleet.
Against Wat Arun, bridges, ferries and Bangkok’s modern skyline, the barges look very different from when they rest at the Royal Barges National Museum. On the water, powered by 2,200 oarsmen, they spring back to life, carrying a centuries-old ceremonial tradition along the Chao Phraya.
Photo by Prasert Thepsri, Wittaya Phenpakkul and Veena Thoopkrajae
