Duong Sat Vietnam trains leave from Ga Hang Co, 120 Le Duan (tel: (04) 942 3697 or 3949 for e-ticketing; website: www.vr.com.vn), in the southwest of the city, the starting point for trains north to Lao Cai, east to Haiphong and south to Ho Chi Minh City. The entrance for northern services is on Tran Quy Cap (tel: (04) 942 3433 or 747 0308). There is only one major rail route in Vietnam from Hanoi to Ho Chi Minh City, with minor routes to northern towns from Hanoi. Internationally, there is a twice-weekly train service to Beijing.
You can buy tickets in person at the station where there is a special counter for foreigners. In addition, a very useful number is 1080 where English-speaking operators can give information on timetables. For long distances, it's best to book soft class sleepers (four people in each cabin) or soft seats for shorter distances. The alternative hard class sleepers (six people in each cabin) and hard class seats are uncomfortable and crowded. The train is a popular way to travel in Vietnam and trains are heavily booked around public holidays like Tet.