Short answer
Choose a two-day, one-night cruise that sails in Lan Ha Bay, with kayaking on both days and a small number of cabins. Expect roughly 2.5–6 million VND per person, with the overnight bay fee often included.
01A typical itinerary
Day 1, late morning
Board, welcome drink and lunch while cruising into the bay.
Afternoon
Kayaking or a bamboo boat into a lagoon or cave, then a swim stop.
Evening
Sunset on the sundeck, dinner, sometimes squid fishing off the stern.
Day 2, early
Sunrise, tai chi or coffee on deck, a short kayak or visit to a floating village.
Late morning
Brunch and return to port around midday.
02Choosing a boat
- Size. Smaller boats (under 15 cabins) feel calmer and sail closer to the islands.
- Route. Ask where the boat anchors overnight; quiet anchorages make the night special.
- Pick-up. Some cruises start from Cat Ba, others from Hai Phong or Tuan Chau in Ha Long and include transfers from Hanoi.
- Policies. Read the weather cancellation policy carefully, especially from July to October.
- Reviews. Focus on recent reviews mentioning food, cabin condition and crew.
03Budget option
Some Cat Ba operators run simpler overnight trips on wooden boats or combine a day on the water with a night in a floating homestay or island bungalow. These cost less and feel more local, with basic facilities.
?Questions people ask
Is an overnight cruise worth it?
Yes, if your budget allows. The evening and early morning on the bay are the most beautiful hours, and day boats miss them.
Do cruises sail in typhoon season?
Only when the authorities allow. During warnings all boats stay in port and cruises are cancelled or rescheduled.