The journey north continues onto Son La, following the 113 Highway. Along the way, there are superb landscapes with green valley and rice fields in terraces. Passing the Bac Yen Mountain top, through Chen Pass to the largest "maize" and "manioc" forest, we arrive at Son La plateau.

After lunch in Son La town, we will visit the former French Prison and provincial museum. It’s also time to keep our willingness to climb over a range of passes, such as Son La, Chieng Pac, and Pha Din.

While passing these scenic sites, you can enjoy the beautiful landscape on your way from Son La to Lai Chau town. The afternoon will provide free time to climb over the top of the Pha Din Pass - known as the interference between Heaven and Earth. Pha Din forms a natural border between Son La and Dien Bien Phu, the site of the decisive battle in Vietnam’s struggle for independence in 1954. Then we take time to travel to Tuan Giao to view the sunset.