Hi! I have a 1 night Halong Bay cruise this weekend, and I am trying to find a private transfer cheaper than the $150 round trip quoted to me by the cruise. It's a bit too much for my friend and I. I know there is shuttle bus, but I need a private transfer since after the cruise I am catching a late night flight. Therefore, I need to go directly from Halong Bay to the Hanoi Airport. Does anyone have any recommendations for a cheaper transfer?