Personal highlights

1. Reunification Express: opened to connect South and North Vietnam after the war
2. Vietnam by Train: a great experience crossing the Republic from North to South
3. Cabins: when boarding in Hanoi, they are clean, the further away, the dirtier
4. Overnight: spending three full nights on the train, what an experience!
5. My itinerary: Hanoi > Hue > Da Nang > Nha Trang > Saigon

Image sources

1. Really cosy cabins on the train
2. Waiting at the station for the next train
3. Boarding the Vietnamese Reunification Express
4. Falling asleep in the bunk beds on the train
5. Checking all the documents