What you actually get on board a Ha Long cruise

Not one boat in our set of seventy is recorded as having no kayaks. Sixty-two of them have a jacuzzi and none is recorded as lacking one. If you are choosing between boats on the strength of those two lines in the brochure, you are choosing on something that does not vary.

What does vary is harder to see from a listing page, and it is the reason a $145 night goes well or badly.

What the listings promise in writing

Promised in the listing	Of 139 listings
Welcome drink	127
Kayaking	116
English-speaking guide	115
Entrance and sightseeing fees	105
Bottled water in the cabin	102
En-suite bathroom	101
Cooking class	66
Tai chi	59
Squid fishing	32
Travel insurance	25
Taxes and service charge	22
Transfer from Hanoi	3

Read that bottom row twice. Three listings out of 139 put the road transfer from Hanoi in writing as included. It is a three to four hour journey each way and it is the single largest cost most people forget when they compare two prices on a screen.

One warning about the rest of the table. It counts what a listing says, not what a boat does. Meals appear in only 38 of the 139, and no overnight boat is going to sail you around for a night without feeding you. Absence from that column means the listing did not bother to write it down, which is a fact about the industry’s paperwork rather than about dinner. Where the row is useful is the opposite direction: when something appears on 116 of 139 lists, the twenty-three that stay silent are worth an email.

What guests talk about afterwards

We classified the written text of 7,104 reviews by subject. The frequencies are not surprising. The comparison in the last two columns is.

Subject	Share of all reviews	Of 1–2 star reviews	Of 5 star reviews
The crew	81%	46%	85%
Food	53%	54%	51%
The cabin	31%	36%	29%
Cleanliness	13%	33%	11%
Kayaking or swimming	12%	10%	11%
Money and worth	7%	30%	5%
How many other people	7%	11%	5%
The road transfer	6%	18%	4%
Paying extra on board	5%	27%	2%
The itinerary going wrong	4%	28%	1%
Booking and admin	4%	27%	2%
Noise	2%	11%	1%

The food paradox

Food is the second most discussed subject on board, and it barely tells you anything.

Guests who gave one or two stars mentioned food in 54% of their reviews. Guests who gave five stars mentioned it in 51%. That gap is nothing. Both groups came home wanting to talk about dinner, and dinner did not decide which group they ended up in.

This matters because food is what the industry sells. Photographs of a set table, a five-course menu, a cooking demonstration on the sundeck. Our own boat pages carry those photographs too. They are a fair picture of an evening on board, and they are close to useless as a way of picking between two boats, because almost every boat clears that bar and the guests who had a bad trip had one anyway.

What actually separates a good trip from a bad one

Three subjects behave completely differently from food. Each appears in roughly a quarter of one and two star reviews and almost never in a five star review.

The itinerary going wrong turns up in 28% of bad reviews and 1% of good ones. That is the sharpest split in the whole table. It covers a stop that did not happen, a day spent on a shared day boat instead of the boat you booked, a schedule run at a pace nobody enjoyed. Of every review that raises the subject at all, 43% sit inside a negative write-up, which is the highest rate of any subject we track.

Being charged on board turns up in 27% of bad reviews and 2% of good ones. Drinks are the usual trigger, and the complaint is rarely that the prices exist. It is that they arrived unannounced after the guest thought they had paid.

Booking and admin turns up in 27% of bad reviews and 2% of good ones: an offer withdrawn, a cabin reassigned the day before, a refund argued over.

None of the three is visible in a photograph. All three are things you can ask about before you pay.

Set against that, the crew. Mentioned in 85% of five star reviews and 46% of one and two star ones, the only subject in the table that runs the other way. When a Ha Long cruise goes well, guests come home with a name.

What nobody publishes

Of the seventy boats we track, not one operator publishes how many crew are on board. Not one publishes when the boat was last refitted. Fifty-seven do not say how many decks the boat has, and twenty-eight do not say which harbour you sail from.

We cannot tell you the crew-to-guest ratio on any boat in Ha Long Bay, because the number does not exist in public. Any site that gives you one has estimated it. The refit date matters more than the launch year on a boat working salt water year-round, and it is unknown across the entire fleet.

The catch, and what we cannot see

Our review numbers describe boats that have reviews. Twenty of the seventy have none we could collect, and a boat with no written record is not the same as a boat with a clean one.

The subject labels are machine-assigned and we scored them before trusting them: 89% precision and 84% recall against a set we labelled by hand. Two labels came out weaker than the rest. Money and booking both under-detect, so where this page says 30% of bad reviews raised money, read it as at least 30%.

The classification also cannot weigh a complaint. A review saying the coffee cost two dollars and a review saying a promised cave was skipped both count once. And a guest who never mentions the itinerary might have had a perfect one or might simply have had nothing to compare it against.

Common questions

Is a jacuzzi worth paying more for? It is not a thing you can pay more for. Sixty-two of seventy boats have one, and the eight we cannot confirm are unknown rather than absent. Every price band has them.

Is the food better on expensive boats? We have no way to score food and we are not going to guess. What we can say is that guests on boats above $200 a night mention food no more favourably than guests below it, and that the subject does not predict a bad trip at any price.

What should I ask before booking? Whether the Hanoi transfer is included and in what vehicle, what happens on the second day of a three-day trip, and what is not covered by the fare once you are aboard. Those three cover most of what goes wrong. Our caves and islands guide covers what to ask about the stops themselves.

Are drinks ever included? Rarely, and 22 of 139 listings mention taxes and service charges separately, which is a hint about how the rest of the bill is built. Ask for a drinks list before you board.