Protecting and conserving one of the planet’s last wild places

In a world with very few unspoilt places, the Chagos Archipelago is a unique and precious environment that needs protecting.

Chagos brain coral Ctenella chagius

Previously thought extinct, the Chagos brain coral, found only in the archipelago, is one of the rarest corals in the world.

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Chagos brain coral Ctenella chagius
Brown Noddy Anous stolidus

These unusual-looking terns receive their name from their nodding courtship displays where they bow repeatedly to one another.

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A Brown Noddy (Anous stolidus) bird in the Chagos Archipelago

Where are the Chagos Islands?

Consisting of 55 islands, the Chagos Archipelago sits in the middle of the Indian Ocean, 300 miles south of the Maldives and 1000 miles from the southern tip of India.

Map of the Chagos Archipelago

Where are the Chagos Islands?

Consisting of 55 islands, the Chagos Archipelago sits in the middle of the Indian Ocean, 300 miles south of the Maldives and 1000 miles from the southern tip of India.

Blue shark Prionace glauca

These graceful fish with metallic blue backs are one of the widest ranging sharks. They are the most heavily hunted shark in the world.

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Blue shark extremely close to the camera

Conserve

Our aim is to make sure this valuable natural environment is conserved, and can act as an example for conservation and management of environments across the planet.

Learn

With the right care, the archipelago can be a reminder of how tropical reefs flourished many hundreds of years ago, and can offer vital insight into how they might be saved for generations to come.

Spotted eagle ray Aetobatus ocellatus

With wingspans of up to 3 metres, these spotty rays glide serenely across reefs foraging for their favourite shellfish snacks.

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Eagle ray spotted in shallow waters
A man holding an artifact at Chagos

Inspire

We unite with partners to carry out scientific research and conservation work, striving to highlight the global importance of this vital marine ecosystem, protecting the wildlife which makes it unique and precious.

What are we protecting?

species

Birds

The Chagos Archipelago is home to a diverse breeding seabird community, with more than 175,000 pairs of birds visiting each year.

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species

Fish

More than 800 species of fish flourish among the Chagos Islands’ reefs, including many that have been heavily diminished by over-fishing elsewhere in the world’s oceans.

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species

Corals

While the archipelago has not fully escaped the ravages of climate change, it remains home to at least 300 types of coral, including the endemic Brain coral (Ctenella chagius), and is critically important to global coral conservation efforts.

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Key projects


Discover our work

A boat's perspective of Chagos Island, highlighting the vibrant blue waters and expansive sky.

Healthy Islands, Healthy Reefs

By rewilding 30 degraded islands in the outer atolls, we want to boost the survival of the Chagos Archipelago’s seabird populations and allow coral and fish communities to thrive.

What is Healthy Islands, Healthy Reefs?
Man taking a photograph of the tree fruits at Chagos

The John Topp Botanical Fund

We are working with the Royal Botanic Gardens Kew to create the first comprehensive record of the islands’ vegetation and collect seeds for Kew’s Millennium Seed Bank.

What is John Topp Botanical Fund?

Chagos News

Learn more about the Trust and recent scientific work happening in the archipelago by reading our annual e-publication.

Read the Chagos News archive

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