Hai Van Pass: Planning the Da Nang to Hue Mountain Crossing
Photo: Toàn Vinh / Unsplash
Contents
Hai Van Pass is one of Vietnam's great coastal mountain roads, on the route between Da Nang and Hue. It lies about 20 km north of central Da Nang and about 80 km south of Hue. The road over the pass is about 20 to 21 km long and climbs to roughly 500 m. Hai Van means "Sea of Clouds", named for the fog and cloud that often wrap the summit while the East Sea glitters below.[1]
Near the crest stands Hai Van Gate, a fortified gateway with an inscription on each side: "Hai Van Quan" on the north gate facing Hue and "Thien ha de nhat hung quan", the most majestic gateway under heaven, on the south gate facing Da Nang. Emperor Minh Mang had it built in 1826 on the foundations of a Tran-era fort, and it was restored in 2024.[1] From its walls you look over forest and sea, especially at sunrise and sunset.
Choose the route you mean
The pass road goes over the mountain. The Hai Van Tunnel, about 6.2 km long, goes underneath it. Through the tunnel takes about 10 minutes, over the pass nearly 30 minutes, and most interprovincial buses take the tunnel. A ticket or transfer between Da Nang and Hue therefore does not guarantee that you see the pass, so ask for the scenic road when you book.[1]
| Option | What it means | Ask before setting out |
|---|---|---|
| Pass road | The winding road over the mountain, with views toward Da Nang Bay and Lang Co Bay when the sky is clear.[1] | That your car, guided trip or bus uses the pass road, plus the stops and return arrangements. |
| Tunnel | A road tunnel under the mountain for through travel. Motorbikes are not allowed inside, but shuttle services carry them through.[1] | Where the motorbike shuttle picks up, when it runs, the price and the luggage terms. |
| Rail | A separate rail journey through the Hai Van corridor, not a stop at the summit.[1] | Current dates, times and tickets with Vietnam Railways. |
Things to Do
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Ways to plan the crossing
By motorbike, the climb from Da Nang takes 45 to 60 minutes depending on your speed and stops. The road is winding and steep, so check your vehicle and fuel up, and avoid night riding and thick fog. If mountain riding is new to you, hire a driver or join a guided motorbike tour. Check that your licence and insurance cover the bike.[1]
By car, the summit is about 30 minutes from Da Nang and about 1.5 hours from Hue. Tell the driver in advance that you want the old pass road rather than the tunnel.[1] Confirm where you stop, for how long and what the quote includes.
Since 2024 the "Central Heritage Connection" train has linked Hue and Da Nang. In August 2025 two pairs of trains ran daily: HĐ1 leaves Hue at 07:45 and reaches Da Nang at 10:35, HĐ3 leaves at 14:25 and arrives at 17:40, HĐ2 leaves Da Nang at 07:50 for Hue at 11:05, and HĐ4 leaves at 15:00 for Hue at 17:45. The line is among Vietnam's most scenic. Sit on the right from Da Nang or on the left from Hue for sea views.[1]
Stops on the way
On the Da Nang side, the first bend of the climb has Turtle Rock, with views over Da Nang Bay and the Son Tra Peninsula. Roadside cafes higher up look toward Lang Co Bay and Lap An Lagoon.[1] Lang Co sits at the foot of the pass on the Hue side and is a good place for a seafood lunch beside the lagoon. The full Hoi An to Hue day by motorbike covers about 150 km.[2] The pass itself is free to visit.[1]
Before you go
Check the weather, because storms and rain can make the road slippery and foggy. Early morning and late afternoon give the best light, and a light jacket helps at the cool summit.[1] For onward planning, see our Vietnam travel and transport guide.
Sources and background
Numbers in the text such as [1] refer to these sources.
- [1] Da Nang City Tourism Information Portal, Danang Fantasticity: Hai Van Pass. Retrieved October 22, 2026.
- [2] Vietnam Tourism: Motorbiking from Hoi An to Hue over Hai Van Pass. Retrieved October 22, 2026.
Frequently Asked Questions
It is a mountain pass between Da Nang and Hue, about 20 km north of central Da Nang and about 80 km south of Hue.
Hai Van means "Sea of Clouds", named for the fog and clouds that often cover the summit.
The road over the pass is about 20 to 21 km long. Driving the climb takes nearly 30 minutes by car from Da Nang, and 45 to 60 minutes by motorbike.
The pass road goes over the mountain, the Hai Van Tunnel runs underneath it and takes about 10 minutes. If you want to see the pass, ask your bus, driver or tour operator to take the mountain road.
No. Motorbikes are not allowed inside the tunnel, but shuttle services carry them through. Riding over the pass is the usual choice.
Ask whether the route goes over the pass or through the tunnel, where it stops, how long the stop lasts and what the price includes.
Mountain and coastal views, the historic Hai Van Gate near the summit and Lang Co Bay on the Hue side. Clear weather matters, so leave some flexibility.
No. The Central Heritage Connection train between Hue and Da Nang runs through the corridor and does not stop at Hai Van Gate. Its views of the coast are the reward.
