O Quy Ho Pass | Discover the masterpieces of Sapa tourism and the Northwest mountains and forests. Explore O Quy Ho Pass, a masterpiece of Sapa tourism and the Northwest mountains and forests, learn about beautiful and famous places on the pass. O Quy Ho Pass during a trip to Sapa is known as one of the four great passes in the Northwest region. O Quy Ho Pass is an important route connecting Lai Chau and Lao Cai provinces with a length of 50km.