Sea life

Green sea turtle

Chelonia mydas

A green sea turtle with a smooth olive shell swimming over a reef

Photo: Charles J. Sharp · CC BY-SA 4.0 · via Wikimedia Commons

Where
Reefs, Beaches, Offshore
When
All year
Size
Shell about 1 metre, weight 100 to 200 kg
Should I worry
Enjoy it
Harmless. Do not chase or touch one, and give it room to surface.

Kayak along the rocks at Ocotal or Hermosa and one will surface a boat length away, look at you, and sink again. Snorkel the headlands and you can watch them graze like cattle on the algae-covered rocks.

Where you’ll see it

Rocky shorelines, headlands and reefs from Coco south, in water shallow enough to snorkel. They feed in the same spots day after day, so a place you saw one is a place you will see one again.

What to know

The eastern Pacific greens are darker than their Caribbean cousins and often called black turtles. Adults are vegetarians, cropping algae and sea grass, which is what gives the fat its green colour and the species its name. They are slow and unbothered by a respectful snorkeller. Do not touch, do not chase, and never get between a turtle and the surface.

Questions people ask about this one

Are green turtles the ones nesting at Ostional?

No, those are olive ridleys. Green turtles are the large ones you meet while snorkelling and kayaking along the rocky shore, feeding on seaweed and algae. The Pacific population here is sometimes called the black turtle for its darker shell.

Wondering what else is out there?

Ask me on the call. I'll tell you what actually shows up in a Coco garden, what to do about it, and the one guy everyone rings when there's a boa in the roof.

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