Overnight bay cruise
The usual way people do it — one night sleeping on the boat
1033 travellers mentioned fact-checkedThese 8 picks for what to do in Ha Long & Cat Ba are not a blog list. Each one is counted from what real travellers actually wrote; the ones we cross-checked against a published source are marked "fact-checked". The number on each card is how many travellers mentioned it. Best time to visit: Mar–May & Sep–Nov.