Divers above the expansive coral colony of Galaxea astreata in Nusa Penida, Bali, showcasing its massive size.
Vincent Chalias

Could This Be the World’s Largest Coral Colony? Nusa Penida’s Galaxea astreata Stuns Scientists.

Only a few weeks after a remarkable colony of Pavona clavus, claiming the title of the world’s largest coral was found and measured in the Solomon Islands, another giant coral colony was measured in Nusa Penida, Bali, Indonesia, and discovered to be even bigger. In early December 2024, a team of young Indonesian marine biologists from Ocean Gardener, after receiving training from the Italian University of Milano Bicocca program ‘Map the Giants, located and measured what could be the biggest coral colony in the world! The now famous Solomon Island Pavona colony is 34m wide, 32m

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Ocean Geographic Magazine | Community Restoration on Nusa Penida

“On Indonesia’s Nusa Penida, a local community takes coral restoration into its own hands to preserve their coral reef for future generations.” Article featured in Ocean Geographic Magazine. Coral reef restoration is a popular subject at the moment with many projects sprouting all over the world. One of them caught our attention. In Indonesia, a coastal community of 26 young locals took the matter into their own hands and decided to fix their own damaged reef where they grew up, swam, and fished as young kids. Throughout their lifetimes, they have seen the local coral

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Vincent Chalias

The ‘Shitty’ Truth about Human Poop and Corals!

There’s a tragic irony in our relationship with coral reefs: we often damage what we claim to love. Tourism, while bringing visitors to marvel at these underwater wonders, through human greed, negligence, and unsustainable development can ultimately destroy the very reefs that attract tourists. This is made worse by the prevalence of greenwashing, where terms like ‘eco-tourism’ and ‘blue economy’ are often misused to mask environmentally damaging practices. While the economic benefits of coral reef protection and Marine Protected Area (MPA) creation, such as enhanced fish stocks and dive tourism, are frequently emphasized. The reality

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Vincent Chalias

Drupella: The Silent Coral Killers You Need to Know

Maintaining healthy coral nurseries and reef restoration sites involves regular monitoring, cleaning, and addressing pests like Drupella snails. These snails can cause significant damage to shallow reefs across Indonesia, and we consistently find them at our project sites. In our experience, Drupella snail outbreaks are a major cause of long-term restoration project failures in Indonesia, making consistent monitoring essential. To help protect the coral, we often need to manually remove these snails, sometimes collecting several hundred during a single dive. Spotting the noctornal Drupella snails Drupella snails are often difficult to spot during the day,

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