Top Gear, a British car show (with plenty of comedy) did an episode where they had to buy some transportation and then go from Ho Chi Minh city to Hanoi.
On the way, they stopped off at different places and met the locals.
Then, at the end, they had to navigate Hai Long bay... so they had plenty of video of that amazing site.
You can watch it here:
http://www.streetfire.net/video/top-gear-season-12-episode-8-vietnam-special_208364.htm
That was very entertaining. Thanks.