The S-shaped land boasts some of the most challenging mountain passes that any adventurer would dream to conquer.
The Most Challenging Mountain Passes in Vietnam

Ô Quy Hồ Pass (Lai Châu): Situated on Highway 4D across the Hoàng Liên Sơn mountain range, this pass lies between Lai Châu and Lào Cai provinces. It's the longest mountain pass in Vietnam, stretching over 50 km at an altitude of over 2,000 meters above sea level. The reward for conquering this pass is the opportunity to witness the majestic beauty of the mountainous landscapes enveloped in the mystical veil of morning mist. Photo credits: Huongkun98, puravidahomes, nguyentruonghere, nguyenthuhuyen57.

Mã Pì Lèng Pass (Hà Giang): Spanning 20 km, this pass is dubbed the most treacherous mountain pass in the northern provinces. Constructed over 6 years (1959-1965), its winding route overlooks the deep abyss of the Nho Quế River, creating a breathtaking panorama amidst nature's grandeur. Photo credits: The_prabster, nguyen.duy_95, charlottecoudyzer, tuan.hao.2505.

Khau Phạ Pass (Yên Bái): Located at an altitude of 1,200-1,500 meters above sea level, the name of this peak in the language of the Thai ethnic group translates to 'Horn of the Sky' (as the mountain peaks protrude into the sky), as the peaks often protrude amidst the surrounding sea of clouds like a horn. Khau Phạ is most beautiful around September-October, when the rice fields on the terraced slopes turn golden, attracting adventurous travelers to conquer the pass and admire the scenery. Photo credits: Thanhmaivtc, bi_tabu, milivista.

Mã Phục Pass (Cao Bằng): Named for the limestone rocks on either side of the highway resembling two kneeling horses in submission, this pass is the most scenic along National Highway 3 from Phủ Lỗ to Tà Nùng border gate, 22 km from Cao Bằng city, in Quốc Toản commune, Trà Lĩnh district. In spring, you'll see fields of buckwheat flowers, and in summer, lush green cornfields. Photo credits: Thuongdinh97, maekichan, dikhapvietnam.

Dubbed the 'First Great Pass under Heaven,' Hải Vân Pass (Thừa Thiên Huế) lies on the Bạch Mã mountain range, serving as the natural boundary between Thừa Thiên Huế province and Đà Nẵng city. Stretching 21 km, the highest point of the pass reaches nearly 500 m, making it the most treacherous mountain pass. Yet, Hải Vân Pass continues to attract adventurers seeking exploration. Photo credits: ttyennhig, photuangraphy, vu_thi_thuy_lien, jonnyrouse7.
Source: Hải Nhi/ Zing News
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Reference: Travel Handbook from Mytour
MytourFebruary 14, 2020