Scientists have uncovered the world’s largest coral reef in the Pacific Ocean near the Solomon Islands.

Spanning 34 metres wide, 32 metres long, and 5.5 metres tall, the coral is estimated to be over 300 years old, dwarfing the previous record holder in American Samoa.

Unlike typical coral reefs, this colossal organism – belonging to the species Pavona clavus – is a single colony made up of billions of genetically identical polyps. Home to diverse marine life, its vibrant blues, reds, and yellows make it an underwater marvel, described by researchers as being “cathedral-sized.”

The discovery was made during a National Geographic Pristine Seas expedition, aimed at promoting marine conservation. Located in deeper waters, the coral has evaded some of the warming effects of global climate change, though it remains vulnerable to rising temperatures and human activity.

This finding offers hope amid the stark reality that nearly half of warm-water corals are facing extinction due to climate change, pollution, and overfishing. Leaders in the Solomon Islands hope the discovery will drive conservation efforts and attract global attention to the region’s marine ecosystems.

The coral’s resilience underscores the need for urgent action to protect the oceans and combat the escalating climate crisis.

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