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Coral Triangle facts and figures

  • 6 million km2 area
  • 75% of the world’s coral species
  • 6 of the world’s 7 marine turtle species
  • Sustains 120 million people
  • US$12 billion nature-based tourism industry (yearly)

Witnessing climate change?

Help WWF by sharing with us your observations of a changing environment—this will make a difference.

See Under the Sea 3D in IMAX theatres and experience the Coral Triangle up close.

Coral Triangle

Maps | more

Coral Triangle Boundary

In one vast, turquoise-blue corner of this Earth, the forces of nature have crafted a truly amazing underwater tapestry of corals.

One that is unrivalled in its richness, importance, and sheer beauty. 

This is the Coral Triangle - nursery of the seas.
Videos | more

Flute Player, Coral Triangle, Philippines

Photos | more

Sea stars (Asteroidea) in sea grass meadow. Indo-Pacific Ocean

School of Pinjalo snappers (pinjalo pinjalo), New Britain, Papua New Guinea.

latest expedition dispatch!

  • 29 Oct 2009

    A School in North Sulawesi

    24 October 2009 We spent a most interesting day with Simone Gerritsen and her kids from her school Kehidupan Anda or “Your Life.” The goal of Project “Kehidupan Anda” is to ...

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Coral Triangle Photo Expedition

Jürgen and Stella Freund are not only husband and wife, but also one of the top underwater photographic teams.

Discover the 'nursery of the seas' with photographers Jürgen and Stella Freund

Turtles! Mantas! Molas! Join Jürgen and Stella on their 18-month photojournalistic expedition as they investigate the connectivity between the wildlife, the people and the marine environment of the Coral Triangle.


News from the Coral Triangle

  • 23 Oct 2009

    Coral Triangle Business Summit to Spur Green Revolution

    Kota Kinabalu, Malaysia – The Philippine Government announced yesterday it will co-host with WWF a Business Summit on the Coral Triangle.  

    "By inviting sectors that rely on a healthy marine environment in the Coral Triangle, as well as the tourism, communications, and investment sectors, this Business Summit will contribute to the pursuit of sustainable business development and investment," said Manuel Gerochi, Philippine Undersecretary of the Department of Environment and Natural Resources during the 4th Senior Officials Meeting of the Coral Triangle Initiative on Coral Reefs, Fisheries and Food Security (CTI) in Kota Kinabalu.


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What is the Coral Triangle?

Born out of the collision of tropical light, warm sea temperatures and oceanic currents, this vast area of the Indo-Pacific region harbours 75% of all known coral species.

Nowhere else on Earth will you find 6 of the 7 marine turtle species, more than 3,000 species of fish, the heaviest bony fish of the deep (meet the 1,000kg mola) and the coelacanth: a species thought until recently to have gone extinct with the dinosaurs some 65 million years ago.

Much more remains to be discovered in the Coral Triangle.

For the people living in the Coral Triangle, the sea is more than just a source of food - it’s a way of life fostered across generations by a close dependence on the marine environment.

If the Coral Triangle fails as a large ecosystem, this dependence will unravel fast and both people and species will suffer.

More on the importance of the Coral Triangle...

What is WWF doing?

For some 20 years, WWF has been exploring and protecting the Coral Triangle.

We help create policies to ensure responsible environmental management of the area, raise awareness, and promote the sharing of skills for better stewardship of the Coral Triangle's amazing marine world.

More on what WWF is doing for the Coral Triangle...
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