Baited Shark Dives: The Honest Ethics Debate

Tiger shark with clear stripes swimming over a reef. Photo: Maahid Photos, Unsplash

You are watching a short clip of a shark dive. Big sharks, a cloud of fish, divers kneeling in the sand. Half the comments say it is amazing. The other half say it is cruel. The truth about baited shark dives is less dramatic than either side of that comment section, and much more interesting.

Short answer first: baited shark dive ethics is not a simple yes or no. It depends on what the bait is, how often it is used, who controls it, which species and which site, and what the sharks and the local people get in return. The research shows real effects at some places and not at others. A dive that is open about those things can be defended. One that hides them cannot.

Baited dives exist because sharks are hard to find on cue. A box of fish scraps, a tuna head or a crate on the sand brings them in. Guests get a long look. Operators get a product they can sell on a calendar. Critics say baiting changes where sharks spend their time and teaches them to link boats with food. Supporters say a well-run site can turn hunters into guardians, keep sharks off the menu, and show people that these animals are not monsters. Both sides are describing something real.

"Baited" can mean very different things

Not all baiting is equal. At one site, a crate of fish may stay closed and only release scent. At another, food is handed to individual sharks. A distant chum slick for blue sharks in open water is different from hand-feeding a reef shark in a lagoon. Somewhere else, sharks gather around a harbour where fishers clean their catch, and some dives use nothing at all. Frequency matters. The amount of food matters. So does whether the site already sits on a natural hunting path, as some tiger shark crossings do.

The worries are easy to name. Sharks might learn to expect food from boats. They might stay near a site longer than they would on their own, or change what they eat. People might be put at risk when animals link them with a meal. A well-known review of shark diving tourism (Gallagher and colleagues, 2015) lists exactly these concerns, and also notes that much of the worry came from how little science existed at the time. It adds that most shark diving operations around the world use bait or another attractant, so this is not a side question.

What does the research on baited shark dives show?

I would love to give you one clean verdict. The evidence does not allow it. A review of 22 studies, covering 14 shark species and 3 ray species exposed to provisioning (the scientific word for feeding wildlife to attract it), found that changes in how individual animals move can spread through the group and the wider community. Over time, this may affect the animals' health and their behaviour towards people. The same authors note that feeding sites can also help scientists study behaviour that is otherwise very hard to see.

At a large scale, the picture can look very different. Researchers satellite-tracked 14 tiger sharks from Tiger Beach, a feeding site on the Little Bahama Bank, and 11 from Florida, where feeding is not allowed. The Bahamas sharks did not stay close to the feeding site. They travelled up to 3,500 km and used a larger area than the Florida sharks. The authors are careful: the two groups differed in size, and they conclude that the effects of provisioning on sharks are "likely scale, site and species specific".

Closer to the site, Tiger Beach studies agree on caution. Researchers tracked 42 tagged tiger sharks with an acoustic array over about a year (2014 to 2015) and found limited support for the idea that provisioning tourism changes where the sharks spend their time, while saying that finer, animal-by-animal research was still needed. A later network study of 48 tiger sharks found some social grouping, but most of the non-random gatherings happened at places not affected by feeding. And a 2022 study reported that female tiger sharks that visit the tourism site often are larger and have higher hormone levels than females that visit less. That is a link, not proof of cause: maybe bigger, healthier sharks are the ones that come, not that the site changes them.

At Bimini, newer work found clear local changes. A 2021 study of the Bimini great hammerhead dive site, where feeding for tourism has happened since 2012, followed 104 provisioning dives in one season and recorded 28 individual sharks. The sharks took more bait on longer dives and when more boats were present, and 9 of the 12 provisioned hammerheads the authors could assess were regularly able to cover their daily energy needs from the provisioned food alone. A longer study from the same team, published in 2024, followed great hammerheads with acoustic tags over several years. As the authors report it, sharks that came to feeding events concentrated their daytime movements around the feeds, their local space use became smaller, and this concentration grew over the years, while the time of year they stay in the area did not change. We could read the paper's summary but not every number in it, so we keep only the main direction of the finding.

Why the debate stays open

These studies do not really contradict each other. One looks at movements across an ocean basin, others at where sharks spend their day close to a feeding site. Both can be true at the same time, and none of them proves a long-term outcome for all shark species. The honest summary: effects on broad movement look weak, while effects on individual animals and local space use are real at some sites and still being studied.

One more point deserves a place here. Reviews of this field say again and again that scientists rarely had a baseline from before a feeding site began. Without a before, it is hard to measure an after. That uncertainty is the point. If nobody can tell you how often they bait, or what happens when the box is empty, you do not have an ethics policy. You have a show.

The quieter problem: disturbance without bait

It would be unfair to put all the weight on bait. No feeding does not mean no effect. In the Bay of La Paz, Mexico, researchers analysed 39 drone videos of whale sharks, 20 with a swimmer copying typical tourist behaviour and 19 with the sharks alone. With a swimmer nearby, the sharks were more likely to be in a disturbed state, with faster, more zigzag movement, which probably costs them energy. The sample is small and the swimmer was simulated. The authors did not call for a ban. They asked for better practice: check the state of each shark before people enter the water, and revisit the minimum distances.

The lesson is useful for any shark trip. Food is one way to change an animal's day. Crowds, chasing, noise and touching are others. Whatever is done to bring the shark close, the guests still decide how they behave once it arrives.

Can bait ever help sharks? The conservation question

This is the strongest argument for baited dives, and it deserves fair space. Gallagher and colleagues conclude that, if done in a careful, precautionary and responsible way, shark diving can give a net conservation benefit for a handful of species. The benefit comes from protection of the site, from money that makes a live shark worth more than a dead one, and from visitors who go home caring. A shark that earns income for a community is harder to net.

The key words are "if" and "a handful of species". Benefits do not appear automatically. They depend on rules that are written down, on money that really reaches local people, and on limits to how much food is used. Some places have simply decided against it: in Hawaiʻi, state law makes it unlawful to conduct any activity related to feeding sharks in state marine waters, with exceptions for traditional cultural practice and for permits. Other places allow it. Please check the current rule before you travel.

Not every gathering is created by tourism, either. At Fuvahmulah in the Maldives, researchers identified 239 individual tiger sharks, mostly females (84.5 percent), and describe the site as the largest tiger shark aggregation known. They report the sharks are drawn to the harbour area by discarded fish waste. That is food, but it is not a tourist's bucket. It shows how blurred the line can be between a natural gathering and one that people shape. Our notes on whether Fuvahmulah's tiger sharks are really wild look at this with care, and why feeding sharks in French Polynesia is complicated looks at another case.

Questions to ask before you book a shark dive

You do not need to be a scientist to ask good questions. What exactly goes into the water, and how often: how many times a day, how many days a week? Is any animal fed by hand, or is food only used to attract? Is there a written permit or rule, and can I see it? How many divers go with each guide, where are divers placed, and what is the plan if the sharks behave differently or conditions change? What happens to the money: do local fishers, communities or conservation work receive a share? Does the operator share data with research?

A good operator answers without getting defensive. A vague answer is information too. For any single site, the strongest evidence would be a study of animal behaviour at that named place, open operating records, independent monitoring and a clear safety plan for guests. That is more convincing than an operator's claim that feeding has "no effect", and more convincing than a critic's claim that it always causes harm. If you want a wider checklist, our guide to green flags and red flags works for sharks as well as whales, and how tourism can protect sharks looks at the positive side.

How to be a good guest on any shark dive

Whatever the dive, the basics stay the same. Never touch or feed a shark yourself. Stay where the guide places you, keep your hands close to your body, and do not follow a shark that turns away. A team that can say "we stopped the dive" is a team that is watching the animals, not the camera. Wildlife encounters are unpredictable. Shark diving should always follow local regulations and experienced professional guidance.

Some practical notes for boat days. A long-sleeve rash guard protects your skin on a long day in the sun. A roll-top dry bag keeps the phone and the briefing notes dry. A low-volume mask that seals well means fewer adjustments and less fiddling with your hands when you want to stay still. If you want pictures, a small underwater or action camera held close to the chest is enough; no photo is worth swimming towards an animal. The debate is not solved by more gear, but a calm, comfortable guest is a better visitor.

Where Ocean Calling stands

Ocean Calling never feeds, baits, chums or touches wildlife, and we do not sell a bait show or promise a shark. We work with vetted local operators, in small groups of no more than six, with unhurried plans and the freedom to skip any activity. If a site uses an attractant, it has to be disclosed, limited and legal, and it still has to pass the same operator scorecard as everything else we do. When the evidence is unclear, we choose the option that asks the least of the animal.

If you are still finding which kind of ocean experience fits you, our Ocean Match is a gentle place to start. And if this made you curious about meeting the ocean in a gentler way, you can explore our retreats.

Questions people ask

Is a baited shark dive always unethical?

Not necessarily. The research shows that effects depend on species, site and scale. What matters is the method, how often it happens, whether it is monitored, and whether the operator is open about it.

Is baiting the same as feeding by hand?

No. Hand feeding is the sharper end of the same idea, because it puts people in direct contact with food and the animal. Baiting can also mean a closed crate or a chum slick at a distance. Both deserve a straight answer from the operator, and different places treat them differently by law.

Does feeding make sharks stay in one place?

It depends on the scale. Tiger sharks from a Bahamas feeding site still travelled up to 3,500 km, while fed great hammerheads at Bimini concentrated their daytime movements around feeding events.

Can sharks get a lot of their food from tourism feeds?

At Bimini, yes for some animals: a 2021 study found that 9 of 12 provisioned great hammerheads were regularly able to cover their daily energy needs from the provisioned food alone. That is one site and one species.

Are baited dives illegal?

It depends on the country and the marine park. In Hawaiʻi, for example, state law makes it unlawful to conduct activities related to feeding sharks in state marine waters, with exceptions. Elsewhere it is allowed or regulated. Always ask for the written rule, and check the current rule before you travel.

Does baiting make sharks dangerous to people?

I cannot give you a reliable number. Reviews list the risk that sharks link people with food as a real concern, and the evidence from different sites is mixed. That is why a safety plan, small groups and an experienced guide matter more than any promise on a website.

Is non-baited shark tourism free of impact?

No. In the Bay of La Paz, a 2023 study found whale sharks were more likely to be in a disturbed state when a swimmer was nearby. Distance, group size and calm behaviour matter even when no food is used.

Do you ever use bait?

No. We do not market a bait show and we never feed, bait or chum wildlife ourselves. Any site that uses an attractant has to be disclosed and has to pass the same operator scorecard as the rest of our work.

Wildlife encounters are never guaranteed and never forced. Ocean Calling works only with vetted, ethical local operators, and every animal is free to approach, or not, entirely on its own terms.

Sources & further reading

Further reading on Ocean Calling: What scuba divers should know before a Fuvahmulah tiger shark dive · Are Fuvahmulah tiger sharks wild if food is used? · Why feeding sharks in French Polynesia is complicated · Green flags and red flags · Tiger shark in the Ocean Atlas · Great hammerhead in the Ocean Atlas