Khau Vai pass: wild canyon in northern Vietnam 14 May 2023 bwsadmin News Travel Vietnam The Khau Vai Pass in the northern mountainous Ha Giang Province offers stunning views, steep cliffs, and a green river for kayaking and camping trips. Source: VNExpress International, https://e.vnexpress.net/photo/travel/khau-vai-pass-wild-canyon-in-northern-vietnam-4603456.html