Centred round attractive Hoan Kiem Lake, the capital of Vietnam is a complete contrast to its worldlier southern counterpart. Where Saigon is all hustle and bustle, Hanoi is more laid back, whilst Saigon is very western looking, Hanoi is more conservative and traditional. Hanoi's Old Quarter is compelling with streets full of traditional vendors and artisans, and the prevailing French influence lends Hanoi a unique atmosphere. An overnight trip to stunning Halong Bay is a must for anyone visiting Hanoi.