Les tortues marines de Moorea : où les observer ?

Moorea's Sea Turtles: Where to Spot Them?


Moorea's lagoon is home to several species of sea turtles. During our boat trips, it's common to observe two iconic Polynesian species: the green sea turtle (Chelonia mydas) and the hawksbill turtle (Eretmochelys imbricata).

These fascinating animals can be observed in the lagoon, near coral reefs, but also outside the lagoon, around the passes and drop-offs, where they come to feed or travel.

Observing a turtle in its natural environment is always a unique moment during a sea excursion.

The Two Turtle Species Found Around Moorea

The Green Sea Turtle (Chelonia mydas)

The green sea turtle is one of the largest sea turtles. It is very common in tropical lagoons and areas rich in seagrass beds.

Main Characteristics

  • Carapace length: 80 to 130 cm

  • Weight: 80 to 200 kg, sometimes up to 400 kg

  • Color: olive-brown carapace with yellow or black patterns

  • Swimming speed: up to 35 km/h

The green sea turtle is recognizable by its relatively small head and its oval and smooth carapace.

Habitat

Green sea turtles primarily live in:

  • tropical lagoons

  • seagrass beds

  • shallow areas rich in vegetation

They feed mainly on seagrass, which plays an important role in maintaining the balance of the lagoon ecosystems.

The Hawksbill Turtle (Eretmochelys imbricata)

The hawksbill turtle is rarer and easily identifiable thanks to its distinctive carapace.

Main Characteristics

  • Size: 70 to 90 cm carapace on average

  • Weight: 45 to 70 kg

  • Pointed beak resembling that of a bird of prey

  • Carapace scales that overlap like tiles

This turtle has a very pointed beak that allows it to find food in corals and rocks.

Habitat

The hawksbill turtle is often observed:

  • near coral reefs

  • in rocky areas

  • around passes and drop-offs

It feeds mainly on sponges, small invertebrates, and corals.

Where to observe turtles in Moorea?

Around Moorea, sea turtles can be observed in several areas:

In the lagoon

  • coral zones

  • coral heads

  • seagrass beds

These areas provide food and protection for the turtles.

Outside the lagoon

  • near the passes

  • along the reef drop-offs

  • in currents rich in food

During our private boat tours, we can explore these different environments to maximize the chances of sightings.

Sea Turtle Reproduction

Sea turtles have a fascinating life cycle.

Females generally return to the beach where they were born to lay their eggs, sometimes after traveling thousands of kilometers across the ocean.

Laying eggs

  • Females come ashore at night

  • They dig a nest in the sand

  • They lay around 80 to 120 eggs

  • Incubation lasts around 45 to 70 days

After hatching, the baby turtles immediately head for the ocean.

How to Determine a Turtle's Sex?

Unlike many animals, the sex of sea turtles does not depend on genetics, but on the sand temperature during incubation.

  • High temperature → more females

  • Low temperature → more males

In adults, males can also be distinguished by:

  • longer tail

  • more developed claws on the flippers

Are Sea Turtles in Danger?

Sea turtles face many threats:

  • plastic pollution 

  • habitat destruction

  • accidental catches in fishing nets

  • disturbance of nesting sites

Some species, like the hawksbill turtle, are considered endangered worldwide.

Fortunately, protection and conservation programs are now allowing some populations to stabilize.

Observing Turtles Responsibly

When we encounter a turtle during a sea excursion, it is essential to follow certain rules:

  • maintain a respectful distance

  • avoid touching them

  • do not chase them

  • limit noise and sudden movements

Observing these animals in their natural habitat must always be done with respect for marine wildlife.

Frequently Asked Questions About Moorea's Turtles

Can you see turtles all year round in Moorea?

Yes. Sea turtles live all year round in the waters of Moorea. They can be observed both in the lagoon and along the outer reef.

Where can you see turtles in Moorea's lagoon?

Turtles are often observed:

  • near coral heads

  • in seagrass beds

  • near reef passes

These areas provide food and protection.

Can you swim with turtles in Moorea?

It is possible to observe turtles while snorkeling, but it is important to respect their space and never touch them.

What is the best time to see turtles?

Turtles can be observed all year round, but sea conditions are often better between April and November

For a small-group boat trip in the Moorea lagoon, discover our private tour.
Each trip tells a different story. Also check out our articles on marine life in Moorea.


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