Khau Pha Pass – the legendary “Sky Gate” road of Northwest Vietnam, is a dream destination for adventure-seekers and explorers. With its sharp hairpin turns, steep slopes, and year-round mist, every ride along the pass is an exhilarating challenge. It is truly an unforgettable experience for bikers who love adventure and the breathtaking nature of Northwest Vietnam.

1. Location of Khau Pha Pass
Khau Pha Pass, also known as Cao Pha Pass, is one of the most famous mountain passes in Vietnam’s Northwest region, located in Yen Bai province. The pass lies on National Highway 32, an important route connecting the mountainous districts of the Northwest, and also serves as a natural boundary between Van Chan District and Mu Cang Chai District.
To the southeast, Khau Pha Pass connects to the Tu Le Valley, a fertile area known for its picturesque rice fields and an ideal stop for travelers wanting to explore local culture.
To the northwest, the pass leads toward Mu Cang Chai, famous for its stunning terraced rice fields, especially during the golden harvest season, creating a majestic and poetic landscape.
2. Khau Pha Pass – The legendary gateway to the sky of Yen Bai, Vietnam
Khau Pha Pass, along with Pha Din Pass, O Quy Ho Pass, and Ma Pi Leng Pass, is famously known as one of the "four great mountain passes" of Northwest Vietnam. Located in Yen Bai province, the pass stretches about 30 km with an average elevation of 1,200 meters, serving as the natural boundary between Van Chan District and Mu Cang Chai District.
Khau Pha is renowned for its winding hairpin turns and steep cliffs, creating a spectacular yet challenging route for adventure seekers. In the local Thai language, “Khau Pha” means “Horn of the Sky”, referring to the mountain peak that rises high above the clouds, often shrouded in mist, making the summit look like a horn pointing straight to the sky.
The most impressive part of conquering Khau Pha is immersing yourself in the majestic natural scenery. Travelers can admire mountain ridges curving like giant horns emerging from layers of white clouds, pristine ancient forests, and the breathtaking terraced rice fields of the H’Mong and Thai communities. The landscape changes with the seasons, from the lush green of young rice to the golden brilliance of harvest, making every journey memorable.
3. Khau Pha Pass – One of the most challenging motorbike routes in Vietnam
Khau Pha Pass is known as one of the most challenging motorbike routes in Vietnam. Stretching about 30 km, the pass demands riders to have good endurance and strong riding skills to conquer steep slopes and sharp hairpin turns.
The route winds through pristine forests, terraced fields gently following the mountain slopes and rocky outcrops, offering an adventure that is both thrilling and rewarding. The weather changes rapidly, with mist and white clouds often covering the pass, adding to the challenge while creating a mystical and majestic atmosphere.

What makes Khau Pha truly captivating is the breathtaking panoramic view of surrounding mountains and valleys. From the heights, riders can admire golden terraced fields of the H’Mong and Thai communities stretching along the slopes like giant stairways, blending with white clouds and high peaks to form a vivid and enchanting natural landscape.
Every curve and stretch of the road opens up a new perspective, making the journey across the pass not only a test of skill but also a full experience of the magnificent beauty of Northwest Vietnam.
>>> You may enjoy this: The complete guide to riding Ma Pi Leng Pass by motorbike
4. Popular motorbike routes in Vietnam passing through Khau Pha Pass
For adventure-seeking bikers, the journey through Khau Pha Pass offers one of the most scenic and challenging motorbike routes in Vietnam. Stretching from Hanoi to Mu Cang Chai, this route combines winding mountain roads, breathtaking landscapes and rich cultural experiences along the way
Route: Hanoi – Hoa Binh – Nghia Lo – Tu Le Valley – Khau Pha Pass – Mu Cang Chai
The most popular route usually starts from central Hanoi, following National Highway 32, leading travelers away from the bustling city life and into the majestic mountains of Northwest Vietnam. The first leg passes through Hoa Binh, where fields, rivers and low hills create a lush green landscape, offering a relaxing introduction before venturing deeper into the mountains.
Next, the route leads to the town of Nghia Lo, an ideal stop for resting, refueling and enjoying local cuisine. Winding roads begin to appear here, signaling the change in terrain as travelers enter the Northwest highlands.
From Nghia Lo, the journey continues through Tu Le Valley, famous for its terraced rice fields and fertile landscapes. This is a perfect place for bikers to stop for photos, sample local specialties such as sticky rice in bamboo (com lam) and rice wine and experience the culture of the Thai ethnic community.
After leaving Tu Le, the road climbs up Khau Pha Pass, stretching about 30 km with sharp hairpin turns, steep inclines and sheer cliffs. This section tests riders’ skills while offering breathtaking views of surrounding mountains, valleys and golden terraced rice fields cascading down the slopes. The weather here changes rapidly, with mist and clouds often covering the pass, enhancing the sense of adventure and creating a mystical atmosphere.

The final destination of the route is Mu Cang Chai, renowned for its iconic terraced rice fields especially during the golden rice harvest season. It is also an ideal place for bikers to rest, admire the stunning scenery and continue exploring the Northwest region.
Highlights of the route:
Diverse terrain: From low mountains and deep valleys to challenging steep passes, the route offers a full adventure experience for riders.
Breathtaking scenery: Winding through the mountains of Northwest Vietnam, fertile valleys and golden terraced fields. From the top of Khau Phạ Pass, you can admire the panoramic view of mountains, white clouds and valleys stretching like a vivid natural painting.
Exciting riding challenges: Continuous hairpin turns, steep slopes and sheer cliffs along the summit section make every journey thrilling and unforgettable.
Unique cultural experiences: Passing through towns and valleys inhabited by the H’Mong and Thai people. Visitors can enjoy local specialties such as com lam and ruou can.
Dramatic weather changes: Fog and clouds often cover the pass, adding challenge to the ride and enhancing the magical and romantic scenery.
5. Safety guidelines for conquering Khau Pha Pass
Khau Pha Pass is one of the most challenging motorbike routes in Northwest Vietnam, making it a must-ride for anyone exploring Vietnam by motorcycle. The pass features steep inclines, sharp hairpin turns and year-round mist.

Following proper safety guidelines will help ensure your journey is safe.
Khau Pha Pass is famous for its consecutive hairpin turns and long steep slopes. When entering a curve, riders should reduce speed and maintain a low gear, usually 1 or 2 throughout the turn and avoid shifting gears to ensure better control of the vehicle.
Always stay close to the right edge of the road and never cross lanes especially on blind corners as trucks and buses often take up part of the road when turning. Some areas near the Tu Le intersection or the Heaven Gate (Cong Troi) experience heavy traffic. If you want to stop for photos or rest, look for open spaces or widened areas along the road usually scenic viewpoints and never stop in the middle of a curve or on a slope.
Khau Pha Pass, also known as the "Horn of Heaven," is often covered in fog particularly in the early morning, late afternoon or after rain. Wearing a yellow or clear helmet visor can improve visibility in fog. Turn on low beams or dipped headlights and avoid high beams so that other vehicles can see you clearly.
Due to the high mountain cliffs, Khau Pha Pass has a higher risk of landslides than many other passes especially the section from Tu Le to the summit during the rainy season. Pay attention to landslide warning signs and any fresh debris on the road. If heavy rain persists, consider stopping and seeking a safe shelter rather than trying to cross the pass.
>>> See more: The ultimate Vietnam motorbike tour guide for beginners
The route through Khau Pha Pass is one of the most memorable journeys in Northwest Vietnam, offering a perfect combination of technical challenges, majestic landscapes and rich cultural experiences. With continuous hairpin turns and steep slopes, you can fully enjoy conquering the demanding roads while admiring the breathtaking mountains and forests of Northwest Vietnam.
For a complete and safe adventure across Northern Vietnam, Frontier Travel Vietnam will be your reliable companion, guiding you through some of the region’s most stunning landscapes and exhilarating motorbike routes.
FAQs
- Where is Khau Pha Pass located?
Khau Pha Pass is situated along National Highway 32, in Mu Cang Chai District, Yen Bai Province, Vietnam.
- How far is Khau Pha Pass from Hanoi?
It is approximately 280–300 km from Hanoi.
- When is the best time to visit Khau Pha Pass?
The ideal time is during the ripe rice season (mid-September to mid-October), when Mu Cang Chai turns into a golden valley, or during the water-pouring season (around May–June), when the terraced fields shimmer like mirrors.
- Is Khau Pha often covered in fog?
Yes. Especially in the early morning and the late months of the year, the top of the pass is frequently covered in thick clouds and dense fog.
- How does the weather change throughout the day on Khau Pha Pass?
The weather is usually cold in the early morning and at night, warmer during the day, with a significant temperature difference between the base and the summit of the pass.
- Is the road to Khau Pha Pass difficult?
The pass is steep with many sharp hairpin turns. Although National Highway 32 has been upgraded and is relatively smooth, it still requires steady handling and careful driving.
- Are there any gas stations on the pass?
There are no major gas stations on Khau Pha Pass, so it's best to fill up your tank in towns like Nghia Lo or Tu Le before starting your ascent.