Ethical Thresher Shark Diving at Kimud and Monad Shoals

Picture a long, curved tail coming slowly out of the blue, and a shark that came here for one reason: to be cleaned by small fish. Now picture a long line of divers kneeling in front of it. Which version would you want to be part of?

So how do you dive with thresher sharks ethically? The best thresher shark dive is not the one where everyone gets the closest photo. It is the one where the shark can use its cleaning station, the divers stay safe, and the animal can leave without passing through a wall of fins. At Kimud and Monad Shoals, pelagic threshers have been recorded using cleaning stations. These are living habitat, not an underwater stage.

What should I ask a thresher shark dive operator before I book?

Ask the operator which shoal the trip visits. Ask how they brief divers around the cleaning area. Ask about the group size and the guide ratio, and how they change the dive if conditions change.

Be honest about your real experience level and how comfortable you are in open water. A good answer from the operator is about your safety and the site. It is not a promise that a shark will show up.

Confirm the current local permissions and conservation rules directly with the operator or the local authority. Site rules can change, and a generic checklist online may be out of date.

In the water: let the shark choose

Follow the guide’s instructions on position and distance. Stay calm. No sudden approaches. Do not block the shark’s route, chase it when it leaves, touch it, or use anything to attract it. If the cleaning station is empty, do not turn the search into a pursuit. Sometimes the shoal is quiet, and that is the answer for today.

Keep your buoyancy under control. One fin kick across the shoal can damage habitat and make the encounter more stressful for everyone, the shark included.

Why the shark’s room matters

The shoals matter whether a dive gives you a photo or not. The Important Shark and Ray Areas initiative identifies this area for pelagic threshers and their very particular behaviour there.

The species is classified as Endangered. A 2025 population model for the Central Visayan Sea also pointed to a possible vulnerability to fishing mortality. So protecting the encounter really means protecting the animal’s room to behave naturally. Wildlife encounters are unpredictable. Thresher shark diving should always follow local regulations and experienced professional guidance.

Our Philippines ocean guide has more of the country’s marine life. You can also read our guide to choosing an ethical dive operator.

You came to see a wild shark. The most respectful ending is that it never had to notice you.

Questions people ask

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.