The principal North-South Railway line connects Hanoi with Saigon, making destinations south of Hanoi, including [Nha Trang](/en/travel/hanoi/nha-trang) and [Danang](/en/travel/hanoi/danang) a convenient next-to-visit entry in your Vietnamese itinerary. [Sapa](/en/travel/hanoi/lao-cai), north of Hanoi, can also be reached by train with a short final 40 km leg to be completed by bus or taxi.