No overland road brings a visitor to the threshold of Đền Chúa Thác Bờ (Chúa Thác Bờ Temple) as naturally as the water route. Boats pull away from the pier and glide between sheer limestone ridges rising on either side of the calm, emerald-green lake. Looking at the still water today, it is hard to imagine that this very stretch was once a treacherous rapid where boatmen on the Đà River paused to pray before attempting the passage. Those rapids now lie beneath dozens of meters of water in the Hòa Bình hydroelectric reservoir, together with the original temple.
What visitors encounter today are two temples looking across the lake at each other. One sits right at the water's edge, where boats pull directly up to the entrance during the high-water season. The other crowns a hill on the opposite shore, reached by climbing roughly a hundred stone steps. Both venerate the two Ladies of Thác Bờ (Bà Chúa Thác Bờ), drawing spirit mediums and pilgrims by boat throughout the spring months.
IThe two Ladies of the Rapids and the Chầu Bà rank
According to Báo Hòa Bình and VietnamPlus, the sanctuary venerates two Ladies of the Rapids (hai bà Chúa Thác). One is Đinh Thị Vân, a Mường woman. The other is a Dao woman from the Vầy Nưa area whose personal name is not recorded. The singular title Bà Chúa Thác Bờ (Lady of the Bờ Rapids) is therefore a shared honorific rather than the name of a single individual. Alongside the two Ladies, VietnamPlus notes that the temple co-venerates the Communal Mandarins (Công đồng Quan Lớn), the Five Great Mandarins (Ngũ vị Tôn ông), the Lady of Sơn Trang (Bà chúa Sơn Trang), the Ladies of the Four Palaces (Tứ phủ Chầu Bà), the Holy Maidens and Young Masters (Tứ phủ Thánh Cô, Thánh Cậu), and Grand Prince Trần Quốc Tuấn (Đức Thánh Trần).
Within the title, the word Chúa (Lady) is the honorific used by lowland practitioners for female deities governing a specific territory or river reach. Thác Bờ (formerly also called Ghềnh Hoa) was the name of the fierce rapid on the Đà River where the old shrine stood. Although the rapid itself has vanished beneath the lake, its name remains attached to the sanctuary.
The pantheon of the Four Palaces (Tứ Phủ) arranges its deities by rank, placing the Mandarins (hàng Quan) below the Three Holy Mothers, followed by the Ladies (hàng Chầu Bà), the Princes (hàng Ông Hoàng), the Maidens (hàng Cô), and the Young Masters (hàng Cậu). The Chầu Bà rank comprises female deities who guard specific regions, mostly in the mountains, forests, and river valleys of the north. In an article in the Buddhist Studies Review (Tạp chí Nghiên cứu Phật học) on the ritual order of spirit possession, Đặng Xuân Xuyến notes that many practitioners place Chúa Thác Bờ in the Chầu Bà rank, invoking her either immediately after or in place of the Third Lady (Chầu Đệ Tam), while also listing a Cô Bé Thác Bờ (Little Maiden of Thác Bờ) in Hòa Bình among the Highland Maidens (Cô Bé Thượng Ngàn).
Because sources do not agree on which palace she belongs to, this entry does not assign one on their behalf. Both the Buddhist Studies Review and the temple's own site describe mediums embodying Chúa Thác Bờ as wearing either a white robe and white headscarf, or a black skirt with a white blouse and green sash, carrying a silver chatelaine (xà tích) and a curved-knife pouch at the waist while holding a torch in one hand and an oar in the other. Practitioners familiar with the Four Palaces will recognize white as the color of the Water Palace (Thoải phủ), whereas the Mường skirt and forest knife pouch evoke the northwestern highlands, so the library records her attire and ritual implements simply as liturgical facts.
Two legendary versions of the two Ladies
Two versions of the Ladies' biography circulate, both belonging to legend.
The first version, recorded in the Buddhist Studies Review, relates that the Lady was originally a celestial nymph who descended to earth at this scenic spot and taught the Mường people how to cultivate crops and catch fish in the Đà River. In this account, she appears as a culture heroine who introduced livelihoods to riverside communities.
The second version, recorded by Báo Hòa Bình and VietnamPlus, portrays the two Ladies as historical women living in the early Lê dynasty (around 1431 during the reign of King Lê Lợi), credited with helping safeguard the region, organizing provisions, building bamboo rafts to guide boats safely past the perilous Thác Bờ rapids, and teaching local people hillside farming and net fishing. After their deaths, oral tradition relates that they frequently manifested spiritual power to help boats cross the rapids in safety. This entry records the story strictly within those bounds.
Although the two versions differ in origin, one celestial and the other mortal, they converge on a single point, namely that the Lady's role is inseparably tied to the Đà River and safe passage across its waters. The early Lê dynasty setting represents the timeframe of oral tradition rather than the construction date of the temple.
First-time visitors often assume that Bà Chúa Thác Bờ is a single person. Local press accounts make clear that the sanctuary honors two women, one Mường and one Dao, and that two bronze statues inside the complex represent the pair. Having a single ritual title represent two women from two highland ethnic groups is a defining feature of this sanctuary, a Viet Four Palaces pilgrimage site whose presiding figures are Mường and Dao women native to the Đà River valley.
IIThe old temple beneath the reservoir
The history of Chúa Thác Bờ Temple is divided by a sharp watershed into before and after the reservoir. Previously, the shrine stood beside a roaring rapid on the swift Đà River. Later, after construction of the Hòa Bình hydroelectric dam began in 1979 and the reservoir filled, both the rapid and the original foundation were submerged beneath dozens of meters of water, according to Báo Hòa Bình. Local residents and temple caretakers relocated the sacred objects and rebuilt the shrines on higher ground along both shores of the lake. The library has found no primary archival document establishing either the founding year of the old shrine or the exact rebuilding dates of the current structures.
- UnknownFoundation of the old shrineNo stele inscription or archival text establishes the exact year the original shrine beside the Bờ Rapids was built.
- Early Lê dynastyEra of the legendThe popular legend places the two Ladies in the early Lê period (around 1431). This is the timeframe of oral tradition rather than the construction date of the temple.
- After 1979Submergence of the old siteAs the Hòa Bình hydroelectric dam impounded the Đà River and the reservoir rose, the rapids and the old shrine site were submerged under dozens of meters of water.
- UnknownRelocation and rebuildingThe shrines were relocated and rebuilt on higher ground on both banks of the lake. Exact rebuilding years for each structure have not been verified.
- 2009National heritage rankingRecognized as a national scenic heritage site in 2009. Sources differ on the exact scope of the designation, as detailed below.
- 2016UNESCO inscriptionPractices related to the Viet beliefs in the Mother Goddesses of Three Realms were inscribed by UNESCO as Intangible Cultural Heritage of Humanity.
- 2025Administrative boundary changeUnder Resolution 202/2025/QH15 and Resolution 1676/NQ-UBTVQH15, former Hòa Bình province merged into Phú Thọ province. The right-bank temple belongs to the new Thung Nai commune, while former Vầy Nưa commune (site of the left-bank temple) was divided between Tiền Phong commune and Thống Nhất ward.
Two points where documentary sources do not fully align are stated plainly below.
What was ranked in 2009. Báo Hòa Bình attributes the 2009 national scenic heritage ranking to the Thác Bờ temple complex as a whole. Meanwhile, the temple's website and VietnamPlus state that in 2009 the Ministry of Culture, Sports and Tourism recognized Thác Bờ Cave (động Thác Bờ) as a National Scenic Heritage Site, while other press reports note that the temples hold provincial heritage status. Because the library has not been able to inspect the individual ranking decisions for each component, both descriptions are recorded here.
Names of the components and river banks. Báo Hòa Bình describes the complex as comprising Đền Trình (also called Đền Chúa), Đền Chầu (also called Đền Ông Chẩu), and Động Thác Bờ (also called Động Tiên). VietnamPlus, by contrast, classifies the shrines by river bank along the downstream flow of the Đà River, distinguishing the right-bank temple (đền phía hữu ngạn) in Thung Nai commune from the left-bank Lady of Thác Bờ Temple (đền bà Chúa Thác Bờ phía tả ngạn) crowning Hang Thần Hill in former Vầy Nưa commune. The library records both naming systems so visitors can orient themselves on site.
IIITwo temples across the lake and Thác Bờ Cave
The complex has no single terrestrial axis. Its three worship sites are distributed across opposite shores of the reservoir and linked by boat. Each component takes its form from the terrain on which it stands, comprising a lakeside shrine, a hilltop temple, and a limestone grotto.
According to VietnamPlus, this two-story structure backs against a rocky cliff and comprises three main worship bays and an inner sanctuary. The ground floor serves as a resting area for pilgrims, while the upper floor houses the altars. During high water, boats dock right at the entrance.
Stands atop Hang Thần Hill in Phố Bờ hamlet on a Đinh-shaped (T-shaped) plan consisting of a front hall (đại bái) and an inner sanctuary (hậu cung), with five front doors, fish-scale roof tiles, a relief of flanking dragons on the ridge, and a Chinese-character plaque above the main door. Reached by climbing about a hundred stone steps.
A dry limestone cavern filled with stalactite columns, including formations shaped like stone gongs and bronze drums, located about ten minutes by boat from the Vầy Nưa temple according to VietnamPlus. Inside are worship altars and bronze statues honoring the two Ladies.
Báo Hòa Bình and VietnamPlus record thirty-eight large and small statues across the sanctuary, among which two bronze statues of the two Ladies serve as the principal images.
The exact placement of the two bronze statues requires careful reading. Both the temple's website and VietnamPlus state that the temple houses thirty-eight statues large and small, including two principal bronze statues of the two Ladies, while also describing the large bronze statues of the two Ladies inside the cave grotto. The figure of thirty-eight statues therefore likely counts the images across the temple and cave complex together.
Regarding Chinese characters, VietnamPlus mentions that the main door of the left-bank temple hangs a large plaque inscribed in Chinese characters, though the source does not transcribe the exact wording. Because Thác Bờ is a vernacular Nôm name for a river rapid rather than a Sino-Vietnamese title, the character field at the top of the page is left blank rather than filled with an unverified reconstruction.
IVThe lie of the land and orientation
Historical sources on the temple do not explain the original geomantic choice of site. What the library offers below is a reading through traditional geomancy (phong thủy) of a landscape whose physical form was dramatically transformed by dam construction within living memory, requiring a two-part reading covering both eras.
This sanctuary represents a rare geomantic case in which the nature of the water changed completely. The original shrine stood beside a fierce rapid where water plunged and churned violently. In traditional geomancy, fast-rushing water that strikes or drops sharply is normally considered unable to gather qi, acting instead as a place where qi scatters. Yet earlier generations deliberately built a shrine right at that spot, showing that the intention was not to tap a gentle, auspicious plot, but to spiritually anchor and calm a perilous stretch of water so boats could pass in safety. The legendary role of the two Ladies as guides who brought boats across the rapids matches that original setting.
When the reservoir filled, the rapids disappeared under the lake. The churning torrent became a broad, tranquil sheet of water encircled by limestone peaks. In traditional geomantic terms, this marked a shift from a water strike (thủy xung) to water gathering (thủy tụ), as the current no longer crashes against the rocks but pools calmly before the temples to form a vast bright hall (minh đường). Pilgrims today glide across the very expanse of water that once terrified river travelers.
Second is the paired-shore configuration (thế đối bờ). The two temples stand on opposite sides of the reservoir, one sitting low by the water against a cliff on the right bank, the other perched high atop Hang Thần Hill on the left bank. Read through yin and yang, the low waterside shrine leans toward yin while the high hilltop temple leans toward yang, with the open lake between them serving as the meeting ground of both energies. The dry limestone cavern filled with stalactites represents, in traditional eyes, a place where mountain qi condenses and settles, well suited for sheltering sacred images.
Regarding orientation, no published source records compass bearings for the individual shrines. What is visually clear is that all three worship sites open toward the surface of the lake, facing the water route by which pilgrims approach. Readers are reminded that this section represents the writer's geomantic interpretation.
VThe festival season on the lake
Chúa Thác Bờ Temple does not hold a single-day festival but observes an entire festival season. According to Báo Hòa Bình, locals open the festival on the 7th day of the 1st lunar month, and the season continues through the end of the third lunar month. Even earlier, throughout the twelfth lunar month, local residents and pilgrims come to offer year-end thanksgiving rites (lễ tạ).
| Lunar date | Observance | Details |
|---|---|---|
| 12th lunar month | Year-end thanksgiving (lễ tạ) | Local residents and devotees visit the shrines to give thanks at the close of the lunar year. |
| 7th day, 1st lunar month | Festival opening (khai hội) | Official opening day of the temple festival, according to Báo Hòa Bình. |
| 1st through 3rd lunar months | Spring pilgrimage season | Pilgrims and spirit mediums travel by boat across the reservoir to visit both temples and Thác Bờ Cave. |
| Throughout the festival season | Spirit possession rituals (hầu đồng) | Rituals featuring the incarnation of Chúa Thác Bờ, where mediums wear white robes or a black Mường skirt with a white blouse and green sash, holding a torch and an oar. |
What sets the Thác Bờ festival apart from landlocked temple festivals is the water journey. Throughout the spring months, the reservoir serves as the primary highway, with boats departing from Thung Nai pier (about fifteen minutes), Bích Hạ port, or Bình Thanh landing (about forty-five minutes) to carry pilgrims to the right-bank temple, across to the left-bank temple, and over to the cave. Completing all three stops traces a full circuit across the water. For spirit mediums, a spring voyage to Thác Bờ is a regular annual pilgrimage, which visitors often combine with sightseeing among the limestone islands of the lake.
The overall hierarchy of the Four Palaces pantheon, from the Three Holy Mothers down to the Maidens and Young Masters, is explained in the entry on Phủ Na and is not repeated here.
Regarding heritage status, the 2016 UNESCO inscription recognizes Practices related to the Viet beliefs in the Mother Goddesses of Three Realms, encompassing spirit possession, chầu văn singing, and festivals practiced across the entire Mother Goddess community rather than any single shrine. The fact that the two presiding deities of Thác Bờ are Mường and Dao women, while the majority of visiting spirit mediums are lowland Viet, illustrates how the Four Palaces tradition has incorporated indigenous tutelary figures from neighboring highland peoples.
VILocation And How To Get There
- Address
- Khu Thác Bờ trên hồ thủy điện Hòa Bình (sông Đà), gồm hai đền nhìn nhau qua lòng hồ: đền hữu ngạn (bờ phải) thuộc xã Thung Nai (các xã Bắc Phong, Bình Thanh, Thung Nai cũ nhập lại năm 2025 theo Nghị quyết 1676/NQ-UBTVQH15, huyện Cao Phong cũ), đền tả ngạn (bờ trái) trên đồi Hang Thần, xóm Phố Bờ, xã Vầy Nưa cũ (huyện Đà Bắc cũ, năm 2025 chia vào xã Tiền Phong và phường Thống Nhất), tỉnh Phú Thọ (Hòa Bình cũ theo Nghị quyết 202/2025/QH15)
- Getting there
- The complex sits on the Hòa Bình hydroelectric reservoir in Phú Thọ province, spanning the new Thung Nai commune (formerly Cao Phong district) and former Vầy Nưa commune (formerly Đà Bắc district, former Hòa Bình province). Visitors reach the shrines by boat from Thung Nai port (about 15 minutes), Bích Hạ port, or Bình Thanh landing (about 45 minutes).
- Coordinates
- 20.7682, 105.1757
Because reaching the shrines requires traveling by boat, the first rule of etiquette is water safety, so visitors are expected to wear life jackets, remain seated while the vessel is underway, and embark or disembark following the boatman's instructions. Visiting the left-bank temple involves climbing roughly a hundred stone steps, and segments of the path inside the cave can be damp and slippery. Inside the temples, incense is offered following the standard order of Four Palaces shrines, saluting the outer communal altar (ban Công đồng) first and the Lady's altar afterward. When encountering a spirit possession ritual, visitors should stand outside the ritual mat.
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?Quick Questions
Who is venerated at Chúa Thác Bờ Temple
According to Báo Hòa Bình and VietnamPlus, the sanctuary venerates two Ladies of the Rapids, namely Đinh Thị Vân, a Mường woman, and an unnamed Dao woman from Vầy Nưa. Within the Four Palaces pantheon, the Buddhist Studies Review notes that practitioners place Chúa Thác Bờ in the Chầu Bà (Lady) rank, invoking her after or in place of the Third Lady (Chầu Đệ Tam), while also listing Cô Bé Thác Bờ among the Highland Maidens.
How many shrines make up the Thác Bờ complex
The complex consists of two temples facing each other across the reservoir alongside Thác Bờ Cave. The right-bank temple in Thung Nai commune is a two-story structure backed against a cliff with three main worship bays and an inner sanctuary where boats dock at the door. The left-bank temple crowns Hang Thần Hill in former Vầy Nưa commune on a Đinh-shaped plan with five doors and fish-scale tiles, reached by a hundred stone steps. Thác Bờ Cave features stalactite columns and altars with bronze statues of the two Ladies.
Where was the original Thác Bờ Temple located
The original shrine stood beside the Thác Bờ rapids (Ghềnh Hoa) on the Đà River. After 1979, when the Hòa Bình hydroelectric dam impounded the river and the reservoir filled, both the rapids and the old temple site were submerged beneath dozens of meters of water, according to Báo Hòa Bình. The present shrines were relocated and rebuilt on higher ground along both shores of the lake.
When does the Chúa Thác Bờ Temple festival take place
The festival opens on the 7th day of the 1st lunar month and runs through the end of the 3rd lunar month, according to Báo Hòa Bình. Starting in the 12th lunar month, locals and devotees also visit to offer year-end thanksgiving rites. Spring is the main season when spirit mediums travel by boat to the two temples and Thác Bờ Cave.
What heritage ranking does Thác Bờ hold
The site received national scenic heritage recognition in 2009. Báo Hòa Bình attributes the 2009 national ranking to the Thác Bờ temple complex, whereas VietnamPlus and the temple's website state that the 2009 Ministry of Culture, Sports and Tourism decision recognized Thác Bờ Cave as a National Scenic Heritage Site (while the temples hold provincial heritage status). The library records both accounts as individual decisions for each component have not been inspected.