The Hải Vân Pass (Vietnamese: Đèo Hải Vân, “ocean cloud pass”), is an approximately 2 mile long mountain pass on National Road 1A in Vietnam. It traverses a spur of the larger Annamite Range that juts into the South China Sea, on the border of Đà Nẵng and Thừa Thiên-Huế Province, near Bach Ma National Park. Its name refers to the mists that rise from the sea, reducing visibility. Historically, the pass was a physical division between the kingdoms of Champa and Dai Viet.[1]
The twisting road on the pass has long been a challenge for drivers traveling between the cities of Huế and Đà Nẵng. Since the completion of Hai Van Tunnel, traffic flow and safety have improved.[1] The pass has been the scene of at least two of Vietnam’s most serious rail accidents, and at least one air crash. [Wiki referenced]
From Da Nang city, Hai Van Pass was the must see “seanic” road path on my list. On the motor bike from Son Tra peninsula not so distant from Da Nang metropolitan, the sky was clear and the weather was moderately warm. My expectation with the weather and visibility after reaching the peak of Hai Van Pass would be the opposition of the current standing position…
Around the peninsula, the elevation slowly rise as the large Buddha monument, Bai But rest area and Bai Rang resort were passed. At these two beautiful beach bays, seafood were enjoyed with affordable pricing. Circling back from Son Tra peninsula is the calm sea link connecting to the start of Hai Van Pass.
At the bottom of Hai Van Pass, my vague childhood memories began to sink in. I once traveled on this pass long long time ago on an automobile and at that time, I was frightened. Now, that fear is being substituted with excitements and full of joy as I envision the height of the Annamite Range and the densed misty cloud. If I say fear were completely disappeared then perhaps I’m not quite being honest with myself. There was other fear up-heat by some villagers, since the completion of Hai Van tunnel, regard road rage and bandits on the pass because the road is left empty and less travelers use it. Regardless, I traveled and proceed with my scenic and historic pass.
At the top of Hai Van Pass is the remaining historic artifacts of watched tower built by Viet Nam’s king Minh Mang (1791-1840). More recently on Hai Van peak is the blockhouse built by the French during colonized period as defensive strong fort. What is more significant to observe at the peak, beside the repeated breathless oceanic and heroic mountain views, is the division line between Hue province and Da Nang city.
Continue down from the top of Hai Van peak are the remaining half of coastline scenic beauty. Caution must be carefully taken when driving down the steep mountain road to avoid accidental incident. Arriving at the bottom of Hai Van pass is the jaw dropping scene of Lang Co bay; accepted as the world’s most beautiful bay by the WorldBay Club.

Hai Van 2nd elbow pass

Hai Van elbow pass

Hai Van foothill – Lang Co bay

Hai Van peak – province border