Cao Bang and Ban Gioc Waterfall: caves, Tay villages and where to stay

Work out the distances before you book a bed

Cao Bang is a province, and the waterfall is not in the provincial capital. Vietnam Tourism puts Cao Bang city about 280 kilometres from Hanoi, with day and overnight buses from My Dinh bus station taking around eight hours. Ban Gioc is a further 92 kilometres or so from the city, in Dam Thuy commune, according to the province's tourism portal. Pac Bo is 52 kilometres north of the city, and the Thang Hen lakes and the Eye of the Mountain God are further stops again. Seen on a map, this is a circuit, not a single stop.

That is why the right base changes during the trip. Cao Bang city, on the Bang River, has what Vietnam Tourism calls a small but contemporary choice of hotels, shops and restaurants, and it is where buses arrive and leave. In Dam Thuy, near the falls and the cave, you sleep in a village homestay instead. Khuoi Ky, a Tay village of 14 stone stilt houses about 2 kilometres from Ban Gioc on the road to Nguom Ngao, runs community homestays. One night in each is the simplest pattern: the city first, then the village, then back through the lakes.

Ban Gioc Waterfall: rafts, a viewpoint and the water level

Ban Gioc is fed by the Quay Son River and is nearly 300 metres wide. The provincial portal describes a main waterfall of three tiers running along the Vietnam–China border and a secondary waterfall that lies wholly in Vietnam. Vietnam Tourism says the water drops more than 30 metres over limestone cliffs. It was designated a national scenic site in 1998.

The usual way to get close is a bamboo raft on the Quay Son River. Vietnam Tourism describes locally run rafts that take visitors to the base of the main cascade. Around midday, when the sun catches the mist, you can often see rainbows. For the overall view, walk up the short, steep path to the Phat Tich Truc Lam Ban Gioc pagoda on the hillside above the valley. Vietnam Tourism suggests early morning or the end of the day for photography there, and that is a good argument for sleeping nearby.

The flow changes a great deal through the year. In the rainy season, roughly June to September, the falls become one wall of white water. From October to May they are quieter and the river turns turquoise. The river is dam-controlled: when we checked on 2026-10-03, Vietnam Tourism's Cao Bang guide said that at the end of the dry season water is released every day between 10:30 and 13:00, bringing the falls up to full flow. If you come late in the dry season, time your visit for that window. Check locally before you go, because a release schedule can change.

Nguom Ngao Cave and the Khuoi Ky stone village

Nguom Ngao Cave is just over 3 kilometres from the waterfall. The provincial portal describes a cave more than 2,000 metres long in limestone that contains coral and sea-anemone fossils, which it dates to about 400 million years ago, and a second branch, Ban Thuon, of about 2 kilometres that opened to visitors in April 2021. The lit walkway passes stalactites and stalagmites in many shapes. Vietnam Tourism's tip is to bring drinking water, because the walk of around one kilometre on the main route can easily take an hour.

Khuoi Ky sits between the cave and the falls on provincial road 206. The houses are stilt houses built of stone, with walls more than 30 centimetres thick, and stand with their backs to the mountain above the Khuoi Ky stream. According to the geopark management board, as reported by VietnamPlus, their history goes back to the late 16th century. Spending a night here makes the area more than a waterfall stop. Remember that these are family homes: ask before you photograph inside, and keep to the paths.

Thang Hen lakes and the Eye of the Mountain God

The Thang Hen lakes are a chain of 36 small lakes linked by caves and underground passages. In the rainy season the water rises and joins them into a single lake, as Vietnam Tourism describes. The lakes themselves are pleasant enough, but the reason to stop is the karst scenery and the farming life around them.

About 2 kilometres away is the Eye of the Mountain God, known locally as Phja Piót, the 'pierced mountain'. The provincial portal describes a round hole more than 50 metres across that goes right through the mountain, about 50 metres above Nam Cha lake at its foot. It became a national scenic site in 2021. The portal says it is at its best in the dry season, from September, when the water recedes and leaves grassy banks. Vietnam Tourism suggests hiring a local guide to get there.

Further east, around 70 kilometres from the provincial centre in Vinh Quy commune, Ba Quang grass hill is green from May to October and turns orange and gold from October to February, according to the portal. It only fits if you have a car and an extra half-day.

Pac Bo and the road north

Pac Bo, in Truong Ha commune 52 kilometres north of the provincial centre, is where Nguyen Ai Quoc, later President Ho Chi Minh, returned to Vietnam on 28 January 1941 after thirty years abroad. From here he led the revolutionary movement. The special national relic site covers more than 295 hectares and, according to the provincial portal, includes Coc Bo Cave, where he lived, Lenin Stream, Karl Marx Mountain and border marker No. 108. For Vietnamese visitors it is a place of pilgrimage. Go for the history and the clear stream valley, and dress and behave as you would at a memorial.

If you are carrying on west towards the high passes, National Highway 4A climbs Khau Coc Cha pass: about 2.5 kilometres with 14 hairpin bends, between Xuan Truong and Bao Lac communes, as the portal describes. It is a road for experienced riders or a hired driver, not for a first day on a scooter.

A workable three-night route

This is an editorial suggestion, not a timetable. Driving times on mountain roads vary with weather and roadworks, so confirm them with your driver or tour operator.

• Day 1 — Hanoi to Cao Bang city: a day bus from My Dinh bus station. Have dinner in the city and try phở chua or bánh cuốn.
• Day 2 — Ban Gioc and Nguom Ngao: drive out to Dam Thuy, walk Nguom Ngao Cave, check in to a homestay in Khuoi Ky, then see the falls and the Truc Lam pagoda viewpoint late in the afternoon.
• Day 3 — Falls early, lakes on the way back: a bamboo raft at the falls in the morning, then Thang Hen lakes and the Eye of the Mountain God on the return to Cao Bang city.
• Day 4 — Pac Bo or onward: a morning at Pac Bo before an afternoon or overnight bus to Hanoi, or a hired car west along Highway 4A.