From Hanoi to Ho Chi Minh City, twenty-one days are enough to connect the limestone landscapes of Ninh Binh, the caves of Phong Nha, and the cities of Central Vietnam. Here is an itinerary without a scooter, with overnight stays, transfer days, and practical choices to keep costs down.
Accommodation, transport, meals and walks: compare Prague, Budapest and Sofia to build a €50-a-day budget while there, without forgetting the cost of getting there.