Likely headed to Vietnam in the next few weeks. Will probably be there for 7-8 days and split my time between Phu Quoc at the JW or IHG (though I heard JW is awesome) and Hanoi and doing an overnight cruise of HaLong Bay. If I can fit it in, I'd love to do some caving (I'd obv love to do Son Doong, but they have no availability for my dates, aside from the fact that it coss $3K PP, but I'm seeing if we can fit in Hang En cave, for a much more reasonable $330 PP).
Any recommendations for private Ha Long Bay overnight boat tours?
Any other recommendations?