Titouan Bernicot inspects an underwater coral nursery, where coral fragments are placed on ropes and grown for about a year, before being replanted at deteriorated reef sites.

Why protecting coral reefs protects the planet

Coral reefs are crucial to ocean health. Here’s how a collective of young ocean advocates is creating a global movement of passionate “coral gardeners.”

The silhouettes of Coral Gardeners team members monitoring corals at an underwater nursery site, as sunlight filters through the ocean’s surface.
Rolex Perpetual Planet Initiative logo.

Rolex’s Perpetual Planet Initiative supports individuals and organizations developing solutions to today’s environmental challenges.

Titouan Bernicot stands in shoulder-depth water, preparing to place a rope of fragmented corals into a coral nursery.

In 2015, a teenage Titouan Bernicot was surfing off the island of Mo’orea, in French Polynesia, when he noticed the corals beneath his feet appeared seriously deteriorated. Just days later, the corals had died. Bernicot was shocked — but determined to act. Now, his organization, Coral Gardeners, is among the most successful and technologically innovative reef conservation projects in the world.

Members of the Coral Gardeners team dive underwater to inspect one of their coral nurseries. The team regularly visits the nurseries to monitor coral growth.

The world has lost more than half of its coral reefs since 1950, with rising water temperatures a leading cause. Coral reefs are crucial to ocean health: Known as “the rainforests of the sea,” thousands of species of marine life depend on them for food and shelter. If coral reefs disappear, many marine species could disappear, too.

Titouan Bernicot discusses projects with two team members at the Coral Gardeners HQ in Mo’orea.
In our island communities, the reefs are our way of life. The local economy is based on the health of these reefs. From fishing to diving to tourism, everything is linked to them. But this is a global issue, too. We all breathe the same oxygen, at least half of which comes from a healthy ocean. We must all be responsible.
— Titouan Bernicot,
Founder and CEO, Coral Gardeners
Wearing snorkel masks, Titouan Bernicot and his colleague Taiano Teiho work underwater, using marine cement to affix a fragment of coral onto a damaged reef.
Wearing snorkel masks, Titouan Bernicot and his colleague Taiano Teiho work underwater, using marine cement to affix a fragment of coral onto a damaged reef.

Not long after Bernicot made that first shocking discovery, he learned about coral restoration. This involves clipping small coral fragments from reefs, growing them in the protected environment of an underwater nursery, and then “planting” these healthy corals onto deteriorated reef sites. Once planted, the corals continue to grow and thrive, reviving damaged reefs.

Titouan Bernicot hosts an outdoor meeting with his Coral Gardeners team, surrounded by the palm trees and blue waters of Mo’orea.

In 2017, aged just 18, Bernicot launched his own, local coral restoration initiative, Coral Gardeners, with some childhood friends. But the bigger goal was to kickstart a global movement — and Bernicot knew social media would be a powerful tool. “We gave a new look to conservation,” he says, “focusing on beautiful imagery and videos, and showing this is a global issue that affects us all.”

Gathered underwater at a reef site, members of the Coral Gardeners team photograph and record the collection of coral fragments.

It worked. Coral Gardeners has reached more than 200 million people with its imagery and videos, inspiring everyone from Hollywood celebrities to leading sportsmen to “adopt” corals. Buoyed by this success, Bernicot is growing more ambitious. Now, CG Labs, Coral Gardeners’ research and development center, is looking to technology to revolutionize ocean conservation and speed up success.

A ReefOS camera, placed underwater to record and livestream footage of a coral nursery site and collect valuable data on fish populations, coral growth, water temperature and more.
We’ve developed an advanced artificial intelligence platform, ReefOS. Using connected cameras and sensors, it reports on the number of species coming back to the reef, the interaction between species, coral growth, and more. We’re reducing the amount of time it takes to monitor the health of each site by a factor of ten.
— Titouan Bernicot
Founder and CEO, Coral Gardeners
Coral Gardeners team member Taiano Teiho affixes a coral fragment to a reef site using marine cement as Titouan Bernicot, holding a clipboard, records the details so that they can monitor growth.
Coral Gardeners team member Taiano Teiho affixes a coral fragment to a reef site using marine cement as Titouan Bernicot, holding a clipboard, records the details so that they can monitor growth.

Support through Rolex’s Perpetual Planet Initiative has been instrumental in helping Coral Gardeners scale up their ambitions. “It’s an honor and a privilege to be part of this inspiring group of Perpetual Planet Initiative partners,” Bernicot says. “We’re all tired of hearing bad news like, ‘The reef is dying.’ We want to bring back hope.”

Titouan Bernicot and a colleague inspect a recently cut fragment of coral, intended for placement in a coral nursery.
Titouan Bernicot and a colleague inspect a recently cut fragment of coral, intended for placement in a coral nursery.
Titouan Bernicot and a colleague inspect a recently cut fragment of coral, intended for placement in a coral nursery.

Today, Coral Gardeners brings hope to French Polynesia’s communities by engaging them in educational workshops that involve everyone — from schoolchildren to fishermen to surfers — in the mission. With the help of their island neighbors, Bernicot and team have planted more than 30,000 corals in the region so far.

An aerial view of a coral nursery in clear, shallow waters just off the shore of Mo’orea.
An aerial view of a coral nursery in clear, shallow waters just off the shore of Mo’orea.

The next step is to spread that hope via a goal of one million corals planted globally by 2025. Bernicot envisions opening branches of Coral Gardeners around the world, empowering local communities to protect their reefs, and using technology to share data and successes. “We don’t have time to wait,” Bernicot says. “We need to think big for the reefs.”

Watch a recording of a live episode of the podcast “Planet Visionaries” featuring Coral Gardeners' Titouan Bernicot and host Alex Honnold.
Season 3 Episode 4:

The next generation of ocean conservation

Watch Coral Gardeners’ Titouan Bernicot in conversation with host, Alex Honnold, during the first ever live episode of “Planet Visionaries,” a podcast about the pioneers helping to safeguard the planet for future generations.

Learn more about Coral Gardeners and the Rolex Perpetual Planet Initiative at this YouTube page.

Learn more about Coral Gardeners and other Rolex Perpetual Planet Initiative partners.

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