Summer is the lotus season in Hanoi, the best and the most beautiful flower. Lotus mainly grow in Hanoi, in the West Lake area. The early morning is the perfect time to go there to take photographs and buy lotuses.
There are lots of people trading lotuses around Hanoi. Unfortunately, once the flowers are cut, they don't last long unless they are in an air-conditioned environment. Fortunately, they are dirt cheap right now.