Located on National Highway 4D, straddling the border between Lao Cai and Lai Chau provinces, O Quy Ho Pass stretches approximately 50 kilometers, making it one of Vietnam's longest mountain passes. This area is a popular tourist destination, renowned for its breathtaking natural scenery.
Pha Din Pass, also known as Pha Din Slope, connects the two northern mountainous provinces of Son La and Dien Bien. During the historical Dien Bien Phu campaign in 1954, the pass endured relentless bombardment, with thousands of tons of bombs dropped. 70 years later, Pha Din Pass today has transformed into one of four magnificent passes in Vietnam’s northwest.
Pha Din Pass is about 32km long and peaks at 1,648m above sea level, linking the two provinces of Dien Bien and Son La. The name of the pass originates from the language of Thai ethnic minority group, meaning the place where ‘sky’ and ‘land’ meet. It is one of the four most famous passes in Vietnam’s northwest.
Hai Van Pass or Sea Clouds Pass offers an impressive landscape of verdant mountains and clear blue skies. Crossing over a spur of Truong Son mountain range between Thua Thien-Hue Province and Da Nang City, it stands at 500m above sea level, making it the highest pass in Vietnam.
Khau Pha Pass in Mu Cang Chai district, the northern mountainous province of Yen Bai, is an attractive destination. The pass stuns travelers with its beautiful and poetic scenery, where high mountains stand on one side and the other side is a deep valley covered with fluffy white clouds around the year.
Ha Giang white cliff, also known as the God Cliff, is located 160km from the centre of northern mountainous Ha Giang province. It can be found on the Ma Pi Leng pass which is about 2km from Dong Van and Meo Vac districts.