A 3-week Vietnam itinerary offers travelers the ideal balance of cultural exploration and natural adventure. Vietnam is a destination that cannot be fully appreciated in just a few days; its contrasts deserve time and thoughtful travel. Over the course of 21 days in Vietnam, this carefully planned route takes you from the northern highlands and Red River Delta to the imperial towns of Central Vietnam, before concluding in the lush Mekong Delta of the south. Each stop introduces unique experiences: walking through Hanoi’s Old Quarter, enjoying a cyclo ride past French colonial boulevards, or joining a home-hosted lunch in Duong Lam Village. In Pu Luong, terraced fields and bamboo waterwheels showcase traditional farming life. Further east, Halong Bay reveals its limestone karsts on an unforgettable overnight cruise. The itinerary continues to Central Vietnam, where Hue’s royal tombs and citadel recall dynastic glory, while Hoi An enchants with riverside charm, cooking classes