We are combining one night in Hanoi, one night in Halong Bay (or the new arm of the bay that was just opened to boats a year or two back) and Amanoi. I've been poking at the issue of what to book as a one night cruise and have yet to settle. I like the idea of a small ship. DavidO mentioned Ginger, a vessel with 12 rooms including two Regent Suites. It's certainly priced well above most others. Does anyone have experience?

Ginger Cruise 2 days 1 night - Halong Ginger Cruise