One of the main reasons I wanted to go to Hanoi is because I wanted to see The Halong Bay. I was not able to do this the last time I was in Vietnam so when my friend Bob told me he was going, I decided to join. The best way to see Halong Bay is by taking a one or two day cruise. We chose the Paradise Luxury cruise liner http://www.halongbaytours.com/
The only downside to the whole experience was the very long drive to Halong Bay from Hanoi. Other than that I would definitely recommend this experience to everyone. What makes the experience really memorable was truly the magical and dream like views that Halong Bay provides. Often I would catch myself just lost in the scenery thinking how it looks like I am in another planet. Do take a look at the first few hours of my Halong Bay experience.