Pick how long you have. Every plan is a fixed, curated route through Hanoi — the places worth your time, what they mean, the small rules locals follow, and one useful phrase a day.
October to April is pleasant
Low
Lake, Old Quarter and a plastic stool dinner
Easy
Add memorials, pagodas and old learning
Comfortable
Coffee culture and bridge sunsets
Steady
Lakes, craft villages and a trip to the karsts
Slow, local