Traveling in Vietnamese busses has a special thrill to it. Even though roads are broad a bus is sharing it with cars, trucks, motorbikes, bicycles, pedestrians, Vietnamese women selling bread and farmers drying their rice. So driving here requires a high amount if patients that drivers lack in general. Common behavior therefore is: make use if your horn, speed up and overtake whatever is in the way on the left side.
A special case are the numerous sleeper busses for tourist that connect the big cities. The beds that are arranged in three rows are framed in metal making the fact that they are to tiny for a standard European especially painful.
Traveling by train is one of the scenic travel options because the tracks go partly along the coast and 30 km/h leave a lot of time to enjoy the view. Entering the train is also a travel back in time since system was build in French colonial times and hardly modernized since.
By far our travel favorite in Vietnam was a wooden ferry with a high speed of 12km/h.