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Green sea turtle swimming over coral reef in Cozumel, Mexico
Conservation & Wildlife

Sea Turtles in Cozumel

Home to three species of sea turtles, Cozumel's protected reefs and pristine beaches are one of the Caribbean's most important marine turtle habitats.

Snorkel with Sea Turtles

Cozumel's Sea Turtle Species

Three species of sea turtle are found in Cozumel's waters, each playing a vital role in the health of the reef ecosystem.

Green Sea Turtle (Chelonia mydas) in Cozumel
Endangered

Green Sea Turtle

Chelonia mydas

Up to 5 feet / 400 lbsHerbivore - seagrass and algae

The most commonly spotted turtle in Cozumel's waters. Green sea turtles graze on seagrass beds along the island's western coast and are frequently seen by snorkelers at Colombia Reef and Palancar. Despite their name, they are actually named for the green color of their body fat, not their shells.

Fun fact: Green sea turtles can hold their breath for up to 5 hours while sleeping underwater. They slow their heart rate to conserve oxygen, sometimes going as long as 9 minutes between heartbeats.

Loggerhead Sea Turtle (Caretta caretta) in Cozumel
Vulnerable

Loggerhead Sea Turtle

Caretta caretta

Up to 3.5 feet / 350 lbsCarnivore - jellyfish, crabs, conchs

Named for their large, powerful heads, loggerheads have incredibly strong jaws that can crush conch shells and sea urchins. They are less commonly seen while snorkeling but nest on Cozumel's east coast beaches between May and October. Their nesting sites are closely monitored by local conservation groups.

Fun fact: Loggerhead hatchlings use the Earth's magnetic field to navigate across the entire Atlantic Ocean and back to their birth beach decades later to lay their own eggs.

Hawksbill Sea Turtle (Eretmochelys imbricata) in Cozumel
Critically Endangered

Hawksbill Sea Turtle

Eretmochelys imbricata

Up to 3 feet / 180 lbsSponges, anemones, sea squirts

The jewel of Cozumel's reef ecosystem. Hawksbills have a narrow, pointed beak perfectly shaped for extracting sponges from coral crevices. Their beautiful, overlapping shell plates made them the target of centuries of tortoiseshell trade, pushing them to the brink of extinction. Cozumel's protected reefs are one of their last strongholds in the western Caribbean.

Fun fact: Hawksbills are essential to coral reef health. By eating sponges that compete with coral for space, they help reefs grow and thrive. Without them, sponges would overgrow and suffocate the coral.

Nesting Season

When Do Sea Turtles Nest in Cozumel?

Nesting season runs from April to October on Cozumel's east coast beaches. Female turtles return to the same beach where they were born to lay their eggs, sometimes traveling thousands of miles across the ocean. Each female lays 3–5 clutches per season, with 100–150 eggs in each nest. After 45–60 days of incubation in the warm sand, tiny hatchlings emerge at night and scramble toward the moonlight reflecting off the ocean.

Baby sea turtle hatchling on Cozumel beach heading toward the ocean
April

Early nesters arrive; beach patrols begin

May–June

Peak nesting. Females lay 100–150 eggs per clutch

July–Aug

First hatchlings emerge (45–60 day incubation)

Sep–Oct

Late hatchlings; season winds down

Nov–Mar

Off-season. Turtles forage on the reefs year-round

Hatchling release programs: Several conservation organizations on Cozumel run guided hatchling release events during July–September. These are unforgettable experiences, so check locally for schedules.

Responsible Tourism

How to See Sea Turtles Responsibly

Encountering a sea turtle in the wild is a privilege. Follow these guidelines to protect them for future generations.

Keep Your Distance

Stay at least 6 feet from any sea turtle. Never chase, touch, or ride them. Let the turtle come to you. They are naturally curious.

No Flash Photography

Flash disorients turtles, especially at night during nesting. Underwater cameras without flash are fine, and the natural light produces better photos anyway.

Use Reef-Safe Sunscreen

Chemical sunscreens contain oxybenzone and octinoxate, which are toxic to turtles and coral. Use mineral-based, biodegradable sunscreen only.

Never Disturb Nests

If you see a turtle nesting or hatchlings emerging, observe from a distance. Do not use lights, and never pick up hatchlings. They need to reach the ocean on their own.

Respect the Marine Park

Cozumel's reefs are a protected national marine park. Follow all park rules, stay in designated snorkeling areas, and never stand on coral.

Support Conservation

A portion of your Marine Park entrance fee funds turtle conservation programs. You can also volunteer with local organizations during nesting season.

Swim with Sea Turtles in Cozumel

Our licensed snorkeling tours visit the reefs where turtles feed every day. Small groups, expert guides, and a 100% refundable deposit. No risk, all reward.

NO TOUR, NO FEE | 100% Refundable Deposit