If you're in the business of bucketlist check offs then a trip to Vietnam would be insufficient without a junk boat cruise through Halong Bay. Sanctioned by UNESCO as a world heritage site, the over 1600 limestone islands jutting up from crystal waters are a preserved homage to mother nature.
Indochina junk boats will have all you need to know and more. Book a private charter boat (4-10 people) or the 24 suite luxury Dragon Legend (more info below). I know it seems like a whole lot of travel time just for one night at Halong Bay, but believe me, one night is plenty. Make sure you prebook your boat in advance, as they can fill up quickly.