The green heart the whole city circles. Come at dawn, when Hanoi wakes up here.
Hoan Kiem Lake is the still green centre of Hanoi's Old Quarter, wrapped around a little red bridge and a legend about a returned magic sword. It's where the city comes to breathe.
Yes, especially at dawn; it's the free, living heart of Hanoi.
Yes — it's free to enter.
Come at dawn, when locals fill the shore with tai chi, badminton and dancing and the light is soft; midday it's just hot and busy.