Quan Ba Heaven Gate and the Twin Mountains

Quan Ba Heaven Gate is a viewpoint at about 1,500 m on National Highway 4C, some 45 km north of Ha Giang city, where the road tops the first high pass of the Ha Giang Loop and looks down on the Tam Son valley. The Twin Mountains, two rounded grassy hills on the valley floor, are a few kilometres further on, seen best from a lookout part-way down the far side.

There is no entrance fee. Most people stop for 20 to 30 minutes at the gate and ten more at the Twin Mountains lookout. On a clear day it is the loop’s first big view, and the point where the limestone plateau begins.

Where it is and how you get there

Leaving Ha Giang city, National Highway 4C climbs almost at once up the Bac Sum pass, a long run of hairpins through forest and maize terraces. The top of the climb is Quan Ba Heaven Gate. From the city it takes about an hour and a half by car without long stops, more if you pull over on Bac Sum.

FromDistanceTime by car
Ha Giang cityabout 45 kmabout 1 h 30 min
Heaven Gate to the Twin Mountains lookouta few km, on the descentunder 10 minutes
Heaven Gate to Tam Son (Quan Ba town)a few km further downabout 10 minutes
Quan Ba to Yen Minhabout 50 kmabout 1 h 30 min

This is also where the border districts start. Foreign visitors need the border-area permit from Quan Ba onwards; our permit page explains how it works. The full route, leg by leg, is on our Ha Giang Loop map.

What you see from the gate

The road reaches a saddle between limestone hills and the land drops away to the north. Below is the Tam Son valley, a wide basin of rice and maize fields with villages along its edges and the town of Tam Son in the middle. Behind it the karst peaks begin, the first sign of the plateau that runs all the way to Dong Van and Meo Vac, part of the Dong Van Karst Plateau geopark.

The viewpoint has a parking area, a cafe with toilets, and a few stalls. Most people stand at the railing by the road. The better view is from the stone steps that climb the hill behind it: five minutes up, and you see the whole valley rather than the edge of it.

Best time of day

From November to February, fog often fills the valley in the early morning and burns off by late morning, so 10:00 to 11:00 is often clearer than dawn. From March to October the morning is usually the best light. Autumn weekends bring the most visitors, most of them between late morning and early afternoon.

The Twin Mountains

A few kilometres past the gate, on the way down to Tam Son, a parking area with steps on the left side of the road marks the lookout for the Twin Mountains. From the road itself you barely see them, which is why so many people drive past.

They are two round, symmetrical hills rising from the valley floor, green in the rainy season and gold after the harvest. In Vietnamese they are the Fairy Mountains, and the H’Mong legend behind the name is of a fairy who married a H’Mong man and was called back to heaven, leaving the hills behind to feed their child.

Ten minutes is enough. The hills are smaller than the photographs suggest; the pleasure is in the shape against the peaks behind, and the fields around them, which change with the season: planting in spring, green in summer, harvest in September and October, and sometimes flowers after it.

What else is near Quan Ba

Quan Ba is more than a viewpoint, and on a slower trip it is worth a night.

PlaceWhat it isTime needed
Tam Son marketThe valley’s weekly market, every Sunday morning45 minutes to an hour
Lung Khuy caveA limestone cave reached by a path uphill from the road30–45 minutes up, plus time inside
Nam DamA Dao village with homestays near the foot of the valleyAn hour or an overnight stay
Lung TamThe H’Mong linen cooperative, on a side road beyond Tam SonAbout an hour

The people of the Quan Ba valley are mostly H’Mong, Tay, Nung and Dao. If you stop in a village, our page on visiting villages with respect covers photographs, homes and markets.

How our trips use Heaven Gate

On the three-day loop, the car picks you up in Ha Giang city at 08:30 and Heaven Gate is the first long stop, reached in late morning, which in winter is when the fog has usually lifted. The Twin Mountains lookout follows, then lunch and the road on to Yen Minh and Sung La.

On the four-day trip from Hanoi, the car arrives at Heaven Gate around 15:30 after the drive north, in the softer afternoon light, and you sleep in a resort bungalow in Quan Ba. The next morning starts at the Lung Tam linen cooperative at 08:30 before the road to Yen Minh. For how the rest of the loop fits together, see the Ha Giang Loop guide.

Honest noteHeaven Gate is a roadside viewpoint, not a destination: 20 minutes is enough for most people, and it is a smaller view than the canyon and the cliffs of Ma Pi Leng two days later. In winter the valley can stay in fog all morning, and on autumn weekends every group on the loop stops here at about the same time. If you arrive on the Hanoi trip on a grey afternoon, the valley may be a wall of cloud, and we cannot change that.

Start the loop at Heaven Gate, with no group to wait for

Three days from Ha Giang city or four door to door from Hanoi with a night in Quan Ba, private for your group.

Ha Giang Loop by Private Car — 3 Days3 days, 2 nightsSee the tour →Ha Giang Loop from Hanoi — 4 Days by Private Car4 days, 3 nightsSee the tour →

Questions about Quan Ba Heaven Gate

How far is Quan Ba Heaven Gate from Ha Giang city?

About 45 km on National Highway 4C, roughly an hour and a half by car. The road climbs the Bac Sum pass before it reaches the gate.

Is there an entrance fee at Quan Ba Heaven Gate?

No. The viewpoint and the Twin Mountains lookout are free. The cafe at the gate sells drinks and has toilets.

Where is the best view of the Twin Mountains?

From the lookout a few kilometres past the gate, on the descent towards Tam Son, where a parking area has steps on the left side of the road. From the road itself the hills are hard to see.

What is the best time to visit Quan Ba Heaven Gate?

Late morning from November to February, when the early fog has usually cleared, and morning the rest of the year. September to November has the clearest weather overall.

Is it worth staying a night in Quan Ba?

Yes, if you have four days or come from Hanoi. It breaks the long first day, and it lets you see Tam Son market on a Sunday, the Lung Tam cooperative or Nam Dam village.

The loop from Heaven Gate to Ma Pi Leng

Car, mountain driver, licensed local guide, rooms, meals, the boat and the permit in one price for your group, free to cancel until 5 days before.

★Ha Giang Loop by Private Car — 3 DaysThree days around the Ha Giang Loop in your own car, from Ha Giang city — Heaven Gate, Lung Cu, the Sky Path on Ma Pi Leng and a private boat on the Nho Que. · 3 days, 2 nightsfrom$354/ person›Choose your group size · price is the group totalSolo traveller$975BOOK →2 guests$1,075BOOK →3 guests$1,315BOOK →4 guests$1,415BOOK →See the full tour page →
Ha Giang Loop from Hanoi — 4 Days by Private CarDoor to door from Hanoi: four days on the Ha Giang Loop with your own car, a licensed local guide and a good hotel every night. · 4 days, 3 nightsfrom$543/ person›Choose your group size · price is the group totalSolo traveller$1,515BOOK →2 guests$1,640BOOK →3 guests$2,045BOOK →4 guests$2,170BOOK →See the full tour page →
Or ask first
WhatsApp · +84 368 938 081Want a night in Quan Ba or a Sunday at Tam Son market? Tell us your dates and we will plan the days.›

Distances, facilities and the absence of an entrance fee were checked in September 2026.

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