Hai Van Pass is located along the Hai Van mountain side, between Thua Thien-Hue and Da Nang city. It is the highest and the most beautiful pass in Vietnam (about 500 meters above sea level), and it is the final mountain belonging to Truong Son. Hai Van Pass is also known as 'Cloud Pass' with one side is mountain and other is sea. In the 'Phu Bien Tap Luc', Le Quy Don said that: Hai Van is the bound of Thuan Hoa and Quang Nam.
At the 13th century, this place belongs to Champa dynasty. In the top of the Pass, the trail of ancestors still retains. The entrance looks to Thua Thien with three words “Hai Van Quan”, the entrance look Quang Nam with the words “Thien Ha De Nhat Hung Quan” (The King Le Thanh Ton granted for this place). According to folk, people said that when Nguyen Hoang Lord protected Quang Nam, Hai Van Pass had a little people passing and it is also the place for wild animal. After the King Minh Mang had been throne, he also visited the beauty of Hai Van Pass and built stone entrance in the top of Pass with the words “De Nhat Hung Quan” (the most beautiful pass). This stone entrance is still on the top of the pass and was recognized as national historical relic. Tourists can contemplate the entire of Da nang city, Son Tra mount.Hai Van Pass is an ideal destination for tourists. From Da nang, along the national highway no.01A to the North. Here, tourists also see Tien Sa, Son Tra peninsula, Cham Islands… and the sand-bank. Coming to Hai Van, you will be sunk into natural space and historical trails of ancient Vietnamese.