Why Patience Is Essential When Swimming With Whales
The boat engine goes quiet. Somewhere ahead, a blow hangs in the air, and nobody moves. Why does patience matter so much when swimming with whales? Because the whale sets the pace, and research shows it notices how we arrive.
Whale encounters happen on nature's timeline
Swimming with whales is often described as one of the most powerful experiences the ocean can give. Being close to an animal that big, that calm, in its own world, tends to put life in perspective in a way that is hard to explain until it happens to you. So why is patience essential when swimming with whales? Because the whale decides. Research shows that how people approach a whale changes how it behaves, and a calm, unhurried approach is both kinder to the animal and the best chance of a natural encounter.
A real encounter rarely happens on cue. It is not a scheduled activity. It depends entirely on what the whale is doing and what the ocean is doing that day. Whales move according to their own migration timing, feeding needs and social life: a mother resting with her calf, other whales nearby, or a moment that is simply not right. None of that can be controlled by a boat, a guide or a guest.
Once you accept this, the day changes shape. You stop waiting for something to happen and start noticing what is already happening around you. That shift, from expecting to noticing, is where patience begins.
How does the way you approach a whale change what happens next?
Whales are intelligent, social animals with rich ways of communicating. Toothed whales use echolocation to find their way and their food; big baleen whales like humpbacks use long, low calls that can travel far through open water. Sound is central to how they read their world, so a sudden splash, a fast fin kick or a boat heading straight at them feels very different from a slow, quiet approach.
This is not only a feeling. A study of humpback whales in Vavaʻu, Tonga, one of the few places where swim-with-whale tourism has been measured directly, ran 56 surveys across the 2016 and 2017 breeding seasons (Fiori and colleagues, PLOS ONE, 2019). It found that mother and calf pairs spent significantly more time diving when swimmers were in the water, that whales avoided tour boats in about a third of approaches, and that the type of approach changed how often they avoided them. Put simply: how you arrive in the water shapes whether a whale stays or decides to leave.
A second study adds the boat's sound to the picture. Off Western Australia, Sprogis and colleagues (eLife, 2020) approached resting humpback mothers and calves with a boat playing back different levels of engine noise. At the loudest level, the mothers' resting time fell by about 30 percent and their breathing rate roughly doubled. A patient boat is usually a quieter boat, too.
This is exactly why our local guides watch a whale's behaviour closely before deciding whether it is the right moment to get in at all, and why, on some days, the kinder choice is to stay on the boat and watch from there.
Weather and water shape every encounter too
It is not only the whale's mood that decides how a day goes. Visibility, current, wind and water temperature all change how easily whales can be seen and how they move through an area. Some days give long, calm windows for watching; others bring choppy water or poor visibility that make any encounter shorter than hoped.
Whale presence itself changes with the season, so even travelling during a known migration window does not guarantee a sighting on any given day. This is not a flaw in the trip. It is simply what it means to spend time with a wild animal instead of a scripted one. Our piece on why wildlife encounters can never be guaranteed explains this honestly.
Giving whales room changes the whole tone
When there is pressure to "make something happen", it is tempting to close the distance fast or put swimmers in a whale's path. The research above suggests this tends to backfire: whales that feel followed or crowded are more likely to dive longer or move away, which is exactly what was seen in Tonga.
Good operators do the opposite. They let the whale choose how close and how long, they keep groups small enough to avoid crowding, and they are willing to end an encounter early if a whale shows it wants space. This is not about ticking a conservation box. An unstressed whale simply behaves more naturally than a startled one.
The quiet reward of slow encounters
Encounters that unfold slowly tend to stay with people longer than rushed ones. Waiting, watching the light change on the water, noticing a whale's breathing rhythm before it surfaces: these small things build a kind of attention that a hurried encounter never allows. You are asked to simply be present with something enormous that does not care about your schedule, and that is a rare feeling on land.
Because so much of a whale day is really waiting on the boat, it helps to have your things in order. A roll-top dry bag keeps a phone and towel dry, and a well-fitting low-volume mask and snorkel means that if the moment comes, you can slip in quietly instead of fighting with your gear at the surface.
The ethical layer: patience written into the rules
This is not about following rules for their own sake. It comes from something simple: a whale's wellbeing matters more than a guest's photo or a guide's schedule. Calm entry into the water, little noise and a willingness to end an encounter early are the basics that good operators, researchers and marine authorities generally agree on, even if the exact numbers differ from one country to the next.
Tonga puts a number on it. Its Whale Watching and Swimming Regulations 2013 say that no more than four clients plus one trained local guide per certified vessel may be in the water with any one pod at a time. They also say that the maximum interaction time of any vessel or vessels with a pod, including a mother and calf, is one and a half hours, unless the operator holds a special interaction permit. After that, no vessel may try to interact with the pod for at least one and a half hours. A whale that has had enough company gets a rest, whether or not the people on board feel ready to leave. But the same Tonga study also recorded low compliance with the existing rules, including the resting-time rules. A rule only protects a whale when a patient operator follows it, so check the current rule with Tonga's Ministry of Tourism before you travel and ask your operator how they apply it.
We are honest with guests about how much this varies elsewhere. Our look at why sightings are sometimes rarer with ethical operators explains that trade-off, and why we think it is the right one. Wildlife encounters are unpredictable. Swimming with whales should always follow local regulations and experienced professional guidance.
Let the whale decide
Patience is not an extra in whale encounters. It is what keeps them respectful. Whales follow biological rhythms and ocean conditions that no itinerary can control, and the moment a swimmer tries to force that timeline, both the encounter and the whale's comfort tend to suffer. Slowing down, watching closely and letting the whale decide how close it wants to come is what turns a swim into something that feels earned instead of staged. If this made you curious to experience it yourself, you can explore our Moʻorea retreat in September 2027 or all our upcoming retreats.
Questions people ask
Why is patience important when swimming with whales?
Research in Tonga found that humpback mothers with calves dived for longer when swimmers were present, and that the type of approach changed how often whales avoided boats. A calm, slow approach gives the encounter the best chance to unfold naturally.
Does boat noise affect whales during an encounter?
Yes. A 2020 study off Western Australia found that louder engine noise cut resting humpback mothers' resting time by about 30 percent and roughly doubled their breathing rate.
How long can you stay with whales in Tonga?
Tonga's Whale Watching and Swimming Regulations 2013 set a maximum of one and a half hours with any pod, including a mother and calf, and then at least one and a half hours before any vessel may interact with that pod again. Check the current rule before you travel.
Can a whale swim be guaranteed?
No. Sightings depend on the season, the weather and the whales' own behaviour that day, and no responsible operator can promise one.
Do whales ever approach swimmers on their own?
Sometimes. When it happens, it is the whale's choice, and that is exactly why patient operators let the whale set the distance instead of closing it.
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
- Tonga Government Gazette No. 16, 2013. Whale Watching and Swimming Regulations 2013. PacLII.
- Kingdom of Tonga, Attorney General's Office. Whale Watching and Swimming Regulations 2013 (subordinate legislation 2013-0004), commencement 17 May 2013.
- International Whaling Commission. Whale Watching Handbook: Tonga country profile.
- Divers Alert Network, 2021. Tonga's Gentle Giants.
- Fiori, Martinez, Orams & Bollard. Effects of whale-based tourism in Vava'u, Kingdom of Tonga: behavioural responses of humpback whales to vessel and swimming tourism activities. PLOS ONE 14: e0219364, 2019 (AUT repository).
- Sprogis, Videsen & Madsen. Vessel noise levels drive behavioural responses of humpback whales with implications for whale-watching. eLife 9: e56760, 2020.
- Scimex, 2019. Your holiday snorkel with whales is affecting their behaviour (news summary of Fiori et al.).
Further reading on Ocean Calling: More from the journal · Wildlife & the law · See the retreats · Ocean Atlas
Swim with humpback whales in Moʻorea: an ethical whale retreat
Whale encounter retreat · Moʻorea, French Polynesia
Time in the blue, on the whales’ terms. If you love whales, this is our whale trip: small group, slow pace, on the animals’ terms.
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