Mat Than Mountain: Known for its stunning rock formations and panoramic views, including its unique "eye-like" hole Ban Gioc Waterfall: One of Vietnam's largest and most beautiful waterfalls, cascading over three tiers and straddling the Vietnam-China border. Tiger Cave: One of northern Vietnam's greatest caves, renowned for its intricate stalactites and stalagmites. Enjoy an adventurous activity amidst serene landscapes. Drive through picturesque passes like Wind Pass, Khau Khang Pass, Cao Bac Pass, and Tai Ho Sin Pass.