Migration, Songs and Unforgettable Encounters in French Polynesia
A powerful blow breaks the silence at the surface. A few seconds later, an enormous tail slowly disappears into the deep blue ocean.
In Moorea, encountering a humpback whale is one of the most moving experiences you can have in French Polynesia.
Every year, between July and November, the waters surrounding the island welcome these ocean giants after a journey of several thousand kilometers from the cold waters of Antarctica.
They travel to the warm waters of French Polynesia to mate, give birth and accompany their calves during the first weeks of their lives.
Watching them from the boat is already an extraordinary experience. But French Polynesia is also one of the rare places in the world where, when conditions and the whales’ behavior allow it, they may be observed directly in the water.
Discover our private whale watching and swimming tour in Moorea
Table of Contents
- An extraordinary encounter: swimming with whales in Moorea
- How to prepare for entering the water
- The captain’s tip: morning or afternoon?
- The migration of humpback whales
- Size and characteristics of humpback whales
- The fascinating songs of humpback whales
- The spectacular breaches of humpback whales
- Mothers and calves
- Responsible whale watching
- More than a tour, a human connection
- Frequently asked questions
- A word from the captain
- Continue discovering Moorea’s marine life
An extraordinary encounter: swimming with whales in Moorea
French Polynesia is one of the rare places in the world where entering the water with humpback whales may be authorized.
This activity is regulated to protect the animals and ensure that encounters take place under controlled conditions.
Entering the water always depends on several factors:
- the presence and behavior of the whales;
- sea conditions;
- the safety of the participants;
- compliance with approach distances and observation rules;
- the decision of the captain and the in-water guide.
Finding a whale does not automatically mean that guests will be able to enter the water. Some situations allow for a calm and respectful in-water observation, while others require everyone to remain on board and enjoy the encounter from the boat.
When entering the water is possible, swimmers move calmly, remain together with the guide and avoid chasing the animals.
The aim is never to force an interaction. We keep a respectful distance and allow the whale to decide how the encounter unfolds.
It is also important to understand that no two tours are ever the same. One day may bring a mother and her calf, another a singing male, a group traveling together or spectacular behavior observed from the boat.
This unpredictability is exactly what makes every excursion unique.
How to prepare for entering the water with humpback whales
When conditions are favorable and the behavior of the whales allows an in-water encounter, participants must be ready to move calmly and follow the instructions of the captain and the in-water guide carefully.
What equipment should you bring?
For a comfortable experience, we recommend bringing:
- a mask that fits your face correctly;
- a snorkel;
- comfortable fins;
- a towel;
- a rash guard or other sun protection;
- a wetsuit if you are sensitive to the cold;
- protection from rain and sea spray;
- a waterproof camera if you would like to take photographs.
A flotation aid is mandatory while in the water. It helps reduce fatigue, improves safety and makes it easier for the group to remain together.
Well-fitting equipment is important. A leaking mask or unsuitable fins can make swimming more difficult and distract you from the observation.
The role of the in-water guide
The in-water guide enters the ocean with the participants and remains with the group throughout the observation.
The guide’s role includes:
- explaining the safety instructions before entering the water;
- keeping the swimmers together;
- choosing a suitable route according to the whales’ position and movement;
- preventing participants from chasing or surrounding the animals;
- monitoring the swimmers’ fatigue, stress and comfort level;
- deciding when the group should return to the boat.
The guide never tries to provoke an interaction. The guide accompanies the participants and adapts the observation to the natural behavior of the whales.
The role of the captain
The captain remains responsible for navigation, the safety of the boat and its position in relation to the animals.
The captain monitors sea conditions, the presence of other boats, the whales’ direction of travel and any changes in the situation.
The captain works closely with the in-water guide to organize the entry, monitor the group from the boat and recover the swimmers safely.
The captain may decide not to allow an in-water encounter if the sea is too rough, if the whales are traveling quickly or if their behavior does not allow a respectful approach.
A strictly regulated activity
Whale watching and in-water encounters with humpback whales are regulated in French Polynesia.
These regulations are designed to limit disturbance during an essential period of the whales’ life cycle: mating, giving birth, nursing and caring for their calves.
The regulations notably govern:
- minimum approach distances;
- the position and movement of boats;
- the number of swimmers allowed in the water;
- the way the animals may be approached;
- the behavior expected from participants;
- situations in which entering the water should be avoided.
Respecting these rules is essential. A beautiful encounter should never come at the expense of a whale’s rest, movement or safety.
👨✈️ The captain’s tip: morning or afternoon?
Many travelers believe that a morning tour offers a better chance of finding whales.
Based on our experience, this is simply not true. We have just as much chance of finding whales in the afternoon as we do in the morning.
The animals do not follow the tour schedule. They move freely, change areas and may display very different behavior throughout the same day.
The main difference between morning and afternoon can sometimes be the light. During the period when the days are shorter, the morning may offer slightly more daylight. However, there is no absolute rule.
A morning tour may provide an immediate encounter, or it may require a long search. An afternoon tour may offer something extraordinary, or the opposite may happen.
We are not in a zoo. These are wild animals, and nature always decides.
The best time is therefore the one that works best with the rest of your stay. Whether you choose the morning or the afternoon, your chances of finding whales are comparable.
The migration of humpback whales
Humpback whales, scientifically known as Megaptera novaeangliae, undertake one of the longest migrations of any marine mammal.
They spend part of the year in the cold, food-rich waters of Antarctica. There, they feed mainly on krill and small fish, building the energy reserves needed for their long journey.
They then travel to the warm waters of French Polynesia, where they mainly come to:
- mate;
- give birth;
- nurse their calves;
- accompany and protect the young during the first weeks of their lives.
This migration covers several thousand kilometers.
During their time in French Polynesia, adult humpback whales eat very little. They rely mainly on the energy reserves accumulated in Antarctic waters.
At the end of the season, they gradually begin their journey south toward their feeding grounds.
Size and characteristics of humpback whales
Humpback whales are among the most impressive animals in the ocean.
Their main characteristics include:
- length: approximately 12 to 16 meters;
- weight: generally between 25 and 35 metric tons;
- pectoral fins: they may reach almost 5 meters in length;
- body shape: massive, with distinctive tubercles covering the head;
- tail fluke: wide, powerful and unique to each individual.
The underside of each whale’s tail has its own pattern, shape and scars.
Scientists and marine conservation organizations use these markings like an identification card. A photograph of the tail can help identify an individual whale and sometimes track its movements over many years.
Humpback whales are also known for their exceptionally long pectoral fins, which give them a very recognizable silhouette underwater.
The fascinating songs of humpback whales
Male humpback whales are famous for their complex songs.
These songs consist of deep sounds, moans, vibrations and repeated sequences. They may last several minutes before starting again and can continue for hours.
The precise purpose of the song is not fully understood. Scientists believe it may play a role in:
- communication between males;
- reproduction;
- the organization of individuals within a breeding area;
- display or competition between males.
When you are in the water near a singing male, these sounds can sometimes be heard very clearly.
The vibrations may be so powerful that you do not simply hear them: you can feel them passing through your body.
The song can sometimes also be heard from the boat, particularly when the engine is in neutral and the sea is calm.
The spectacular breaches of humpback whales
Humpback whales are famous for their spectacular jumps out of the water, known as breaches.
Watching an animal weighing several dozen tons rise almost completely out of the ocean is one of the most impressive natural spectacles you can experience at sea.
Humpback whales may also strike the surface with:
- their tail flukes;
- their pectoral fins;
- their heads;
- their bodies as they fall onto their side or back.
These behaviors may have several possible functions, including communication, interaction with other whales, parasite removal or physical activity.
Calves are often especially active. They may repeat the same movements, breach several times and appear to learn by watching their mother.
These scenes can never be provoked or guaranteed. They may happen at the beginning of a tour, just before returning to the dock or not at all.
Once again, nature decides.
Mothers and calves
During the whale season, mothers accompanied by their calves are regularly observed around Moorea.
After a gestation period of approximately 11 to 12 months, the calf is born in warm tropical waters.
At birth:
- it measures approximately 4 to 5 meters;
- it weighs close to one metric ton;
- it must quickly learn how to reach the surface and breathe;
- it remains constantly close to its mother.
The calf drinks the exceptionally rich milk produced by its mother. It grows rapidly before beginning the long migration toward colder waters.
The mother remains attentive and may place herself between her calf and anything she perceives as a disturbance.
It is therefore especially important to respect their space, avoid crossing their path and never insist on approaching them.
Some encounters are calm, with a resting mother and a calf surfacing regularly to breathe. Others are more dynamic, with the young whale swimming, breaching or exploring its surroundings.
These encounters are among the most moving moments you can experience at sea.
Responsible whale watching
The opportunity to watch or swim with humpback whales comes with an important responsibility.
These animals travel to French Polynesia to mate, give birth, nurse their calves and care for their young. Limiting disturbance is therefore essential.
Responsible whale watching includes:
- respecting the regulated approach distances;
- avoiding fast or direct approaches;
- not surrounding whales with several boats;
- not cutting across their path;
- not chasing an animal that is trying to move away;
- limiting noise and sudden movements;
- adapting the duration of the observation to the whales’ behavior;
- deciding not to enter the water when the situation is unsuitable.
A whale may change its behavior at any moment. The captain and guide must therefore observe the animals carefully and continuously adapt the approach.
The success of an excursion should not be measured only by whether guests entered the water.
A beautiful observation from the boat, a song heard beneath the hull, a mother accompanying her calf or an unexpected breach can be just as memorable.
Respecting the animal also means accepting that we cannot decide everything.
More than a tour, a human connection
We have chosen to offer only private excursions, with a maximum of four guests.
This small group allows everyone to enjoy the boat in a peaceful atmosphere, gives us the flexibility to adapt the excursion to the conditions and provides time to explain what we are observing.
For us, however, the value of a private tour goes far beyond whale watching.
When we spend half a day together, we have time to get to know one another. We quickly learn the name of every person on board. We talk about our travels, families, work, passions and life experiences.
Our guests sometimes share part of their story with us, and we also share ours: our life in Moorea and our experience at sea.
As the hours pass, the excursion often becomes much more than a boat tour. It becomes a moment of discovery, sharing and genuine human connection in an extraordinary natural environment.
That is also why we enjoy offering private tours so much.
Frequently asked questions about whales in Moorea
When is whale season in Moorea?
The whale season generally runs from July to November. The number and presence of whales change throughout the season.
Is morning better than afternoon?
No. Based on our experience, the chances of finding whales are comparable in the morning and afternoon. They are wild animals and move freely.
Are whale sightings guaranteed?
No. Even during the season, sightings can never be guaranteed. Whales are free to move wherever they choose, and conditions change every day.
Is entering the water guaranteed?
No. An in-water encounter depends on the behavior of the whales, sea conditions, participant safety and the applicable regulations. Some encounters must take place entirely from the boat.
Do I need to be an excellent swimmer?
You need to be sufficiently comfortable in the water to use a mask, snorkel and fins and to follow the guide’s instructions. The mandatory flotation aid also makes swimming easier.
How long does the excursion last?
Our excursions generally last up to four hours. The duration may be adjusted according to conditions and the particular needs of our guests.
What should I bring?
- a mask and snorkel;
- fins;
- a towel;
- a rash guard or other sun protection;
- a wetsuit if you are sensitive to the cold;
- protection from rain and sea spray;
- a suitable camera if you would like to take photographs.
Can we see whale calves?
Yes. Mothers accompanied by their calves may be observed during the season. Their presence can never be guaranteed, however.
Can children participate?
This depends on their age, confidence in the water and the conditions on the day. A private excursion makes it easier to adapt the pace to a family.
Can I take underwater photographs?
Yes, provided that you remain focused on your safety and follow the guide’s instructions. A whale should never be chased simply to obtain a photograph.
Why choose a private tour?
A private tour allows you to travel with a maximum of four guests, adapt the pace, ask as many questions as you wish and enjoy the excursion without another group on board.
🌊 A word from the captain
“The magic of whales comes precisely from the fact that they owe us nothing. Every encounter is a gift that nature chooses to offer us.”
Continue discovering Moorea’s marine life
Humpback whales are present for only part of the year, but the waters surrounding Moorea are home to exceptional marine wildlife in every season.
- Discover all our articles about Moorea’s marine life
- Where can you see dolphins in Moorea?
- Discover our private lagoon tour in Moorea
- Learn more about our private whale tour
👉 Book a private whale watching and swimming tour in Moorea