Hai Van Pass, meaning “Ocean Cloud Pass,” follows a mountainous stretch of coastline where the Truong Son Range extends towards the East Sea. Its winding road climbs through forested slopes and misty peaks, revealing striking views of rugged cliffs, blue waters and the bays below. The pass has long served as an important route between Central Vietnam’s coastal regions, while its dramatic scenery has made it a favourite subject for photographers and a memorable highlight of journeys between Da Nang and Hue.

At the summit stands Hai Van Gate, a historic defensive complex commissioned by Emperor Minh Mang of the Nguyen Dynasty in 1826. Its stone gateways bear the inscriptions “Hai Van Quan” and “Thien Ha De Nhat Hung Quan,” commonly translated as “The World’s Most Marvelous Wonder.” Recognised as a special national relic, the complex reflects the pass’s strategic importance in Vietnam’s history and adds cultural significance to its natural setting.

The landscape changes dramatically on either side of the summit. Looking south, visitors can admire Da Nang Bay and the distant Son Tra Peninsula; to the north, the coastline opens towards Lang Co Bay, with its long sandy beach and tranquil lagoon landscape. The combination of mountain scenery, coastal panoramas and historic architecture makes Hai Van Pass one of the most distinctive natural and cultural landmarks in Central Vietnam.