In the North West of Vietnam, the Quan Hoa mountains. It is one of the poorest and most isolated regions of Vietnam. Here, the majority of peasants survive on less than a dollar a day. However, this province has an inexhaustible wealth, bamboo ... Vietnam's green gold. Some of these bamboos are transported by raft ... A makeshift boat, assembled in a few hours, sets off on the "Luong" river, to join the "Song Ma", Vietnam's third largest river. This region is also the only one in the country where the roads are not all paved. During the rainy season, which lasts almost three months, part of the trade is paralyzed. Even 4x4s or trucks quickly give up taking them… The only machine capable of traveling on these tracks, the “Tuk Tuk”. But in Vietnam, the king of transport is the motorcycle. It's almost a religion. In the country there are more than 40 million motorcycles.