Hi,
I'm also planning a trip to Vietnam. Do you think it is possible to do all these places in 10 days: Hanoi / Sapa / Hue / Danang / Hoi An?

If not, which would be more interesting for 2 adults and 2 children (4 and 9 yrs old): Hanoi / Sapa or Hanoi / Hue / Hoi An?

We want to do the Halong Bay Cruise. Any recommendation? I've read that Handspan is highly recommended and have checked their website. For those of you who have tried it, which junk would you recommend? With 2 kids, is it too much to do 2 nights on board?

What are the interesting things to do / places to visit with children?

My son loves trains. Are there any possible train rides between the places I mentioned above?

Last but not least, any 3-4* hotel recommendation? We like hotels 'oozing charm', to use Bungle's words, but which are child friendly and 'refreshing' at the same time.

Thanks for your help!