
King of the Northwest Passes — Vietnam's Longest Mountain Pass
Arrive between 4:00 PM and 5:30 PM for sunset over the Lai Chau valley. Bring a windbreaker as temperatures drop rapidly once the sun dips below the ridge.



The summit of O Quy Ho Pass is 15 km west of Sapa town center along National Highway 4D (about 30–35 minutes by car), passing Silver Waterfall at km 12 and Love Waterfall / Tram Ton Pass at km 14.