Pilot Coral Restoration at Hon Ong Island

On land, forests are the lungs of the Earth and home to wildlife. Beneath the ocean, coral reefs serve the same role, providing shelter and life for countless marine species. A healthy reef can support over 25% of ocean life, despite covering less than 1% of the seabed.

Corals may resemble vibrant underwater gardens, yet they are highly sensitive living organisms. Climate change, rising sea temperatures, pollution, and destructive fishing practices can lead to coral bleaching and large scale die offs.

Around the world, countries such as Australia, Thailand, the Maldives, and Indonesia have developed artificial reef projects, combining conservation with education and sustainable tourism. Vietnam is also taking steps forward.

On July 5, Whale Island Resort welcomed experts from Rainbow Divers, with support from the European International School Ho Chi Minh City (EIS) and the PADI AWARE Foundation, to launch a pilot coral restoration project in the waters surrounding Hon Ong Island.

The initiative, led by EIS, allows students to apply their knowledge to real world environmental efforts. Hon Ong was chosen for its naturally favorable conditions for coral growth, despite increasing pressure from ocean pollution.

Ten concrete structures were handcrafted by students using recycled glass bottles, then carefully placed on the seabed by professional divers. These act as substrates for young corals to attach and grow. As the reefs regenerate, marine life gradually returns, restoring balance to the ecosystem.

 

Jeremy Stein, Director of Rainbow Divers, shared: “Marine environments are increasingly affected by climate change. Coral restoration helps form new reef systems and supports natural ecosystem recovery. These structures function like natural rocks, creating ideal conditions for coral growth. We will continue monitoring results and expand the model if successful.”

Similar projects have been implemented across Vietnam, including Nam Du, Phu Quoc, and Cu Lao Cham, where damaged reefs are being restored through community based conservation efforts.

In 2020, Hon Ong was recognized by Forbes as one of the world’s top ten diving destinations, known for its colorful soft coral reefs. Today, visitors come to kayak, snorkel, and explore these waters.

Located in a clean and secluded marine environment, Whale Island Resort remains committed to preserving the last untouched beauty of Khanh Hoa’s coastline.

This coral restoration project marks a meaningful first step, laying the foundation for future conservation models driven by science and community collaboration. If successful, it will expand to other regions, helping restore ocean health and bring coral reefs back to life. A better tomorrow begins with the seeds we plant today.