Are you trying to fit a Hoi An lantern night and the Hai Van Pass into one short trip, only to find that the distances, festival dates, and weather do not line up neatly? March is one of the best months for Central Vietnam, but a careless plan can leave you in Hoi An on the wrong night or on a foggy mountain road with no time left for Hue. The fix is simple: plan around the actual lantern calendar, keep one flexible day for the pass, and choose your crossing based on the experience you want. March 2026 offers…