Nguyen Binh: Another Under-the-Radar Gem on the Cao Bang Loop

Where is Nguyen Binh, and what changed in 2025

Nguyen Binh sits roughly 45 km west of Cao Bang city on National Highway 34, the road that continues to Bao Lac and on towards Ha Giang. Since 1 July 2025 it is no longer a district. The former district was reorganised eight communes that now report directly to Cao Bang province, so ''Nguyen Binh district'' no longer exists on paper.

The eight communes are Nguyen Binh, Thanh Cong, Tinh Tuc, Tam Kim, Phan Thanh, Ca Thanh, Minh Tam and Bach Dang. For a traveller, three of them carry almost everything worth stopping for. Thanh Cong absorbed the former Quang Thanh commune and now holds Phja Den, the Kolia tea estate, the Ban Phuong bamboo grove and the Dao Tien village of Hoai Khao. Tinh Tuc is the old mining town on the highway. Tam Kim holds the revolutionary forest sites. The land rises around 500 m near the highway junction to 1,931 m at the summit of Phja Oac, and that vertical range is the reason the area feels nothing like the rest of Cao Bang.

What Nguyen Binh offers that the rest of Cao Bang does not

Nguyen Binh is the cold, high, forested side of the province, while Trung Khanh and Tra Linh to the east are the limestone-and-water side. If Ban Gioc Waterfall, Nguom Ngao Cave and Angel Eye Mountain are why you came to Cao Bang, Nguyen Binh is not a substitute for them. It is what you add when you want altitude, tea hills, cloud and quiet villages instead.

The practical difference is temperature and traffic. Phja Oac and Phja Den sit in a pocket where summer highs stay around 18 to 22 degrees Celsius while Cao Bang city is well the thirties, and where winter temperatures at the summit have been recorded as low as minus nine, cold enough for frost to form on the branches. You will also meet very few foreign travellers here. The trade-off is honest: services are thin, restaurants outside the towns are rare, and the last kilometres to most viewpoints are narrow and steep.

The area also forms the western route of the Non Nuoc Cao Bang UNESCO Global Geopark, titled ''Explore Phja Oac, the mountain of changes'', which links the Lang Mon fossil sea floor, the Tinh Tuc tin mine, a Dao Tien beeswax cooperative, the Kolia tea estate and the national park. It is the only part of the province where geology, colonial industry and living craft sit on one road.

How to reach Nguyen Binh, and what the roads are like

Cao Bang city, follow National Highway 34 west for about 45 km to Nguyen Binh, then turn onto provincial road 212 for Phja Den and the national park. Reaching Kolia and the park entrance takes roughly 70 km in total, or about two to two and a half hours on a motorbike with photo stops. Hanoi, expect 280 km and a full day.

Coming Hanoi

There is no direct public transport Hanoi to the villages of Nguyen Binh. Sleeper buses and limousines run Hanoi to Cao Bang city in roughly seven to eight hours, and there you need your own wheels: a rented motorbike, a private car, or an easy rider. Local buses do pass through Nguyen Binh town on the Cao Bang to Bao Lac line, but they will not take you up provincial road 212 to Phja Den, and they will certainly not wait while you walk a bamboo forest.

Riding it yourself

The highway surface is generally good and the traffic is light. The difficulty is not the tarmac, it is the gradient, the hairpins and the mist. Provincial road 212 and the final climb to the Phja Oac viewpoint are narrow, steep and frequently wet, and cloud can drop visibility to a few metres within minutes even on a clear morning. In midwinter the top section can genuinely ice over.

At Cao Bang Eco Travel our rental bikes run 180,000 to 550,000 VND per day depending on the model, with insurance at 90,000 VND per day, and we will tell you plainly if the route you are describing is beyond the bike or beyond your experience. Foreign riders need a valid international driving permit under the 1968 Convention to ride legally in Vietnam. If you are not confident on mountain roads, this is one of the better places in the province to sit on the back and let someone else take the corners.

For a full packing and preparation checklist, see our guide on what to prepare before the Cao Bang Loop.

The best places to stop in Nguyen Binh

Nearly everything worth stopping for sits along two roads, National Highway 34 and provincial road 212, so how you sequence the stops matters more than the list itself.

Phja Oac summit and Phja Oac to Phja Den National Park

Phja Oac is the high point of the park at 1,931 m, and the reason most people come up here. The national park was established in January 2018 and covers more than 10,000 hectares, including over 8,000 hectares of forest, with recorded populations of 90 rare plant species and 58 rare animal species. Phja Den, the second peak, reaches 1,391 m.

What you see depends entirely on the hour you arrive. Come at first light and the cloud sits below you, filling the valleys so only the ridge tops break through. Come at four in the afternoon and the same cloud is coming up at you, and the temperature drops as it arrives. The forest in the last kilometre is dwarf forest: stunted trees under a coat of wet moss, everything dripping, the light green and low. It feels closer to somewhere temperate than to northern Vietnam, which is exactly what the altitude does. Ruined stone walls appear beside the track without explanation, and the explanation is further down this page.

The practical part is short. At the time of writing there is no ticket booth on the summit road, and the paid sites in the area are private ones such as Kolia. If you intend to camp inside the forest rather than at a homestay, local guidance is to contact the forest management board first, so settle that before you carry a tent up.

Ban Phuong bamboo grove, and which bamboo forest you are actually looking at

The bamboo forest in Nguyen Binh is at Ban Phuong hamlet in Thanh Cong commune: roughly 30 hectares of truc sao at around 1,000 m. What makes it strange is the absence of anything else. No undergrowth, no mixed canopy, nothing but grey-green poles running straight up out of the ground in every direction, close enough together that the light arrives already filtered, and quiet enough that the loudest sound is the poles knocking against each other when the wind moves through. The walking is flat and easy.

This is where a lot of travellers get sent to the wrong province-length detour. There are two famous bamboo forests in Cao Bang and they are about 60 km apart. Ban Phuong is the Nguyen Binh one, on the Phja Den side. Lung Pan, in the former Bao Lac district, is roughly 100 km Cao Bang city along the same National Highway 34, much further west. Both are worth seeing, neither is a replacement for the other, and if you only have one day you want Ban Phuong. Bamboo here is also a working crop rather than scenery: the province has more than 3,400 hectares of it, and the poles you see standing will eventually become furniture, water channels and household goods.

Kolia tea estate and the Phja Den valley

Kolia is the one place in Nguyen Binh built for visitors rather than discovered by them. It sits at Phja Den in Thanh Cong commune, about 70 km Cao Bang city, and combines organic tea terraces, a glass walkway over the slope, flower gardens and a restaurant serving highland dishes. Tea picking and on-site processing are the activities worth your time.

The hydrangeas are the reason Vietnamese visitors come, and they peak around May and June. Provincial media reported an entry ticket of 30,000 VND for the flower garden, though that figure dates 2023 and Kolia prices its services separately, so treat it as an order of magnitude and confirm on arrival. The valley below the estate also holds a trout farm, built in 2007 to use the cold spring water, which is a stop on the geopark route and an easy lunch.

Hoai Khao, the Dao Tien village

Hoai Khao is a 34-household Dao Tien hamlet in Thanh Cong commune, about 20 km Nguyen Binh town and 60 km Cao Bang city, opened as a community tourism site in October 2020. Seven families run homestays in wooden houses with yin-yang tile roofs. What makes it unusual is not the architecture, it is an arrangement with a colony of bees.

Above the hamlet, in two caves, sit close to a hundred wild rock bee nests. The bees arrive to build around February and March and leave before the cold comes, and the village takes only what is behind: the empty wax, never the honey. That wax is the point. A woman heats it, loads a thin bamboo stylus, and draws on white cloth freehand, no pattern to copy from, before the cloth goes the indigo vat. The dye takes everywhere the wax did not, which is why a Dao Tien skirt carries pale motifs on dark ground and why every skirt is slightly different the next. The collection ceremony falls in the sixth or seventh lunar month, roughly July to August, on a day the village sets each year. Silver carving, brocade embroidery and pao dung singing are all still practised here.

One practical warning that costs people an hour: Google Maps has misdirected visitors to Hoai Khao in the past. Navigate to the Hoai Khao community house rather than the village name, and watch for the wooden signboard near the Son Dong junction. Rice terraces below the hamlet are green through summer and turn gold about July to September.

The French villas and the Tinh Tuc tin mine

The ruined European-style villas scattered around Phja Den and Phja Oac are not a romantic mystery. They are what is of a tin and tungsten mining industry that ran on this mountain for most of the twentieth century, and understanding that turns a photo stop the most interesting hour in Nguyen Binh.

The Tinh Tuc deposit was worked as an open pit the late nineteenth century. In 1902 a French company, Societe des mines d'etain de Cao Bang, was formed to mine it at scale, and a separate French company began working the tin and tungsten veins in the Phja Oac granite, opening the Ban O mine in 1908. Output the Phja Oac field rose around 225 tonnes in 1910 to 384 tonnes in 1937, and by 1945 the French operation had extracted 32,417 tonnes of tin and tungsten concentrate along with 136 kg of gold. The mine was re-established in October 1955 and the state tin plant began operating in July 1956 with Soviet assistance. The villas were where the managers lived, at altitude, above the pits. Today the best preserved is the red villa at Phja Den hamlet, moss covered and wrapped in vines, and the mine itself is a listed heritage point on the geopark's western route.

Tran Hung Dao forest and Phai Khat

Tran Hung Dao forest, at the foot of Slam Cao mountain in Tam Kim commune about 50 km southwest of Cao Bang city, is where the Vietnam Propaganda Unit for National Liberation was founded on 22 December 1944 under Vo Nguyen Giap, with the Phai Khat post nearby as the target of its first engagement. For most international visitors this is a twenty minute stop rather than a half day, and it lands better with that context than without. Go in the morning, before the domestic tour groups arrive.

If you have longer

Three smaller stops reward a second day: the Phan Thanh grass hill, open pasture good for a picnic or a night of camping; Na Bao market in Lang Mon, which runs on the 4th, 9th, 14th, 19th, 24th and 29th of each lunar month and is where the surrounding hamlets actually shop; and the Lang Mon fossil sea floor, the first stop on the geopark's western route.

When to visit Nguyen Binh

September to November is the strongest window: dry roads, clear light, golden rice below the hamlets and comfortable riding temperatures. December to February is the cold and frost season and the only time you can see ice at the summit. May and June bring the hydrangeas at Kolia. July and August are green and dramatic but wet.

One caution about winter. Frost at Phja Oac makes headlines in Vietnamese media every year and draws domestic crowds, but the same conditions turn the summit road slick. If you are riding in December or January, go up late morning after the surface has warmed, and be willing to turn back.

How many days Nguyen Binh needs, and where it fits in a Cao Bang route

One day is enough to see Nguyen Binh properly a base in Cao Bang city, and two days with a night in Hoai Khao is the version I would actually recommend. Trying to add Nguyen Binh to a Ban Gioc day is the mistake to avoid: the two sit on opposite sides of the province and a combined day becomes six hours of riding with no time to stop.

That third option is the one most independent riders miss. Nguyen Binh sits on the direct road between Cao Bang city and Bao Lac, so it costs almost no extra distance if you are heading to Ha Giang anyway. Our Cao Bang Loop tours with easy riders run 1 to 5 days with an English-speaking guide who knows which of these roads is passable after rain, and the western leg can be built a private route. If you would rather build the route yourself, start with our guide to Cao Bang province, our list of things to see on the Cao Bang Loop.

Where to stay in Nguyen Binh

Accommodation here falls three tiers and no international-standard hotel exists. Hoai Khao has seven family-run homestays with simple rooms and meals cooked by the household. Kolia at Phja Den offers the most comfort, directly on the tea hills. Guesthouses in Nguyen Binh and Tinh Tuc towns are functional, useful mainly if you arrive late.

Booking platforms cover the area poorly, so a phone call the day before is more reliable than an app. Many riders skip the question entirely and treat Nguyen Binh as a day trip the city: if that suits you, compare the options in our guide to where to stay in Cao Bang, or look at our own Eco House, Eco Homestay and Eco Camping.

One thing to order while you are up here: mien dong den, the black canna-starch noodle that Nguyen Binh is known for across northern Vietnam, grey-black and chewy, and the standard gift to carry home. For the rest of the provincial menu, see our guide to eating like a local in Cao Bang. Outside the towns restaurants are scarce, so eat when you find food rather than when you are hungry.

Frequently asked questions about Nguyen Binh

Does it actually snow at Phja Oac?

Frost and rime ice are what you will realistically see, not snowfall. Provincial reporting has recorded summit temperatures down to minus nine degrees Celsius in winter, which coats branches and grass in white and is often described locally as snow. Genuine falling snow is rare and unpredictable, so plan the trip around the cold season generally rather than around a snow forecast.

Can I reach Nguyen Binh by public transport Hanoi?

Only partly. Sleeper buses run Hanoi to Cao Bang city in around seven to eight hours, and local buses on the Cao Bang to Bao Lac route pass through Nguyen Binh town. Beyond that there is no scheduled service to Phja Den, Hoai Khao or the summit, so you will need a rented motorbike, a private car or a guide.

Which bamboo forest is the one in the photographs?

Both of them, and they are different places about 60 km apart. Ban Phuong in Thanh Cong commune is the Nguyen Binh grove, around 30 hectares and reachable on a day trip Cao Bang city. Lung Pan, in the former Bao Lac district, lies roughly 100 km west of the city.

Is Nguyen Binh suitable for a beginner rider?

The highway section is manageable, the mountain section is not. Provincial road 212 and the summit climb combine steep gradients, tight hairpins, frequent mist and wet surfaces. If this is your first week on a motorbike, take an easy rider or a private car and enjoy the view instead of the road.

Do I need a ticket or permit for Phja Oac to Phja Den National Park?

No ticket booth operates on the summit road at the time of writing, and the viewpoints and the bamboo grove are open access. Private sites such as Kolia charge their own fees. If you intend to camp overnight inside the forest rather than at a homestay or a designated camping area, local guidance is to contact the forest management board or the commune authority beforehand.

What festivals can I see in Nguyen Binh?

The beeswax collection ceremony at Hoai Khao is the distinctive one, held in the sixth or seventh lunar month, roughly July to August, on a date the village sets each year. Na Bao market runs on the 4th, 9th, 14th, 19th, 24th and 29th of the lunar month, and the Phja Den market has been revived as a cultural event. Dao Tien coming-of-age ceremonies happen far less predictably and cannot be scheduled around.

Is Nguyen Binh worth the detour?

Yes, if you have three days or more in the province, or if you are riding west towards Bao Lac and Ha Giang anyway. What you trade here is convenience for altitude, quiet and a layer of history the waterfall side of Cao Bang does not have. Nguyen Binh is not the reason to come, it is the reason to stay a day longer.

If you would rather have the roads, the weather and the homestay calls handled for you, our team at Cao Bang Eco Travel lives here and rides this route regularly. Tell us how many days you have and what you want them, and we will tell you honestly whether Nguyen Binh belongs in your itinerary. See our Cao Bang Loop tours or message us to build a private route.