• SharkieSophie

A Guilty Pleasure?

Updated: Apr 26

Shark tourism has become increasingly popular in recent years, and trips to see, snorkel and dive with sharks is now a booming industry all over the world. As a result, there have been enumerable benefits to local communities; providing jobs and boosting local economies, but also to the sharks themselves; improving education and awareness, and boosting conservation of endangered species... But is there another, less pleasant side to shark tourism? Is it actually good for the sharks?... Is it doing more harm than good?... Is it ethical?

Whale shark with an old caudal fin injury (Image credit: Jess Hadden, Source: www.abc.net.au)

A case study which has received a lot of attention in the shark tourism debate is that of whale shark (Rhincodon typus) trips in the Philippines. In this part of the world, shark tourism is centred around the municipality of Oslob, Cebu, where "provisioning" (aka feeding) is used to attract sharks into close proximity with vessels, snorkelers and divers.

This is a contentious issue in and of itself, as feeding wild animals has been shown to actually be very bad for their health; it is related to poor body condition and reduced overall fitness in many species. The problem is that, we know provisioning alters the natural behaviour of whale sharks, but we do not know what effects this might have on the health of the sharks in the long run. A study conducted in the Philippines has shown that whale sharks which are fed for tourism spend more time at the surface (less than 2 metres depth). This suggests that the whale sharks use their habitat differently in order to export the unnatural food resource. The study also reported that the time the sharks spent diving to greater depths (up to 1928 m) shifted from the morning (between 04:00 - 10:00h) to the midday (from 10:00 - 14:00h), which implies the whale sharks shifted their daily habitats to coincide with tourism feeding times (Araujo et al, 2020). The scientists expressed concern that, as this meant the sharks were spending more time in warmer water, that this could have implications for their metabolism, which may affect their health and reproductive fitness in the long-term (Araujo et al, 2020).

More work will need to be completed in the future to determine the effects that provisioning-related behavioural changes have on the sharks... There is not yet any definitive scientific study that shows feeding whale sharks harms them, but equally, we do not have an evidence proving that it is not harmful.

Study site in the Philippines (Zieglera et al, 2018).

On the other hand, there are many studies which do show that certain aspects of tourism in the Philippines are harmful to whale sharks...

For example, we know that boat strikes are causing serious injuries to whale sharks in the Philippines. A team of scientists photographs injuries on over 150 sharks in Oslob and found that 57% of individuals had major scarring caused by human activities; lacerations from boats propellors were seen on 28% of the sharks! They commonly saw abrasions and scrapes, sometimes even with boat paint visible in the wound, and they even reported multiple amputations, where entire segments of the dorsal fin had been sheared off. The scientists found that the sharks visiting the provisioning area had significantly more scars than sharks at other feeding sites in the world and concluded that the feeding methods in the Philippines (drawing sharks into such close proximity to the boats with bait) were directly responsible for causing injuries to the whale sharks (Penketh et al, 2020).

Scars caused by boat strikes on whale sharks in the Philippines (Penketh et al, 2019).

Philippine municipal ordinance states that tourism boats must stay a minimum safe distance from the whale sharks. The rules also state that tour operators must ensure tourists do not touch any sharks and stay at least 5 meters from the side / 2 metres from the front of the shark when in the water. Each shark must only be interacted with for 30 minutes maximum, and only six snorkelers and four scuba divers should be allowed in the water around a shark at once. Heavy splashing and flash photography should also be discouraged (Schleimer et al, 2015).

Philippine whale shark tourism (Zieglera et al, 2018)

However, when a team of scientists assessed how well these rules were adhered to, there were dismal findings. They calculated that 85% of snorkelers came too close to the sharks and the maximum number of people interacting with sharks at once was exceeded more often than not! They concluded that the sharks were commonly crowded and harassed in the Philippines (Schleimer et al, 2015).

"The welfare status of whale sharks is difficult to assess. Whale sharks in Oslob are free from hunger and thirst, but whether they are free from discomfort,free from pain, injury or disease, free to express normal behaviours, or free from fear and distress is unclear.”

- Zieglera et al, 2018

The difficulty with this issue lies in the trade-off between benefits and costs to the whale sharks... we have already discussed the cons, but what are the pros? Well, diving tourism in the Philippines offers the whale sharks default protection, as the local people become incentivised to value live sharks more than those extracted in fisheries. This is clearly good for whale shark conservation, but also benefits the local community, as it boosts the economy. Whatsmore, this type of tourism also provides a platform for education about whale sharks and provides opportunities for scientists to conduct more research at the site (Zieglera et al, 2018).

But, surely there must be a better way than how shark diving is currently conducted in the Philippines? In my humble opinion, laws need to be strictly adhered to and breaches be punishable by law. That is the only way that the whale sharks in Oslob with benefit from shark diving tourism. There are many shark diving sites around the world where provisioning is limited and interactions with the animals are strictly controlled, so I see no reason why the same methods can't be implemented in the Philippines. After all, how could anyone enjoy their shark diving experience in good conscience if they knew they were causing harm to such a beautiful, gentle animal?

If you are lucky enough to ever be travelling in the Philippines and would like to see the whale sharks, it is of critical importance that you research the tour operators you are considering and decide whether you are comfortable with how they treat the whale sharks:

  • There are many websites out there with ratings and reviews, which you can check out via a simple Google search. People who take these kind of tours often give very candid reviews about the ethics of the company.

  • You can also check out the people who will take you on the tour. Legitimate companies often include a tab on their website to introduce you to their team. So you can look at their credentials and decide if you think it will be an educational and respectful experience.

  • I would also advise you to look through the photos from each company. Tour operators often include encounter images on their websites which you can assess. Ask yourself, 'Are they too close to the sharks?' and 'Will there be too many of us crowding the sharks at once?'.

  • Never join a tour you think is questionable. You get the quality you pay for, and it may be that a more expensive option is more ethical and legitimate.

  • When on your tour, do not approach closely to a whale shark and DO NOT TOUCH THEM. This can cause them stress or transfer parasites / bacteria onto their skin. Also, make sure to turn the flash off on any cameras you use, as this can be very startling for the animal.

To ensure you snorkel and/or dive responsibly with sharks, you can take the AWARE Shark Conservation course through PADI in collaboration with ProjectAware.


Araujo G, Labaja J, Snow S, Huveneers C & Ponzo A (2020). Changes in diving behaviour and habitat use of provisioned whale sharks: implications for management. Scientific Reports, 10, 16951. Access online.

Penketh L, Schleimer A, Labaja J, Snow S, Ponzo A & Araujo G (2020). Scarring patterns of whale sharks, Rhincodon typus, at a provisioning site in the Philippines. Aquatic Conservation Marine and Freshwater Ecosystems, 1-13.

Schleimer A, Araujo G, Penketh L, Heath A, McCoy E, Labaja J, Lucey A & Ponzo A (2015). Learning from a provisioning site: code of conduct compliance and behaviour of whale sharks in Oslob, Cebu, Philippines. PeerJ, 3:e1452. Access online.

Zieglera JA, Silberg JN, Araujo G, Labaja J, Ponzo A, Rollins R & Dearden P (2018). A guilty pleasure: Tourist perspectives on the ethics of feeding whale sharks in Oslob, Philippines. Tourism Management, 68, 264-274. Access online.

By Sophie A. Maycock for SharkSpeak.

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