Black Turtle Conservation

Marine conservation in Koh Tao through conservation courses, scientific research and community action.

We're training the next generation of marine conservationists while protecting our reefs with hands-on science.

06/03/2026

🚨 OFFICIAL TRAILER | An Ocean Education: The PADI Divemaster Journey (Koh Tao, Thailand) 🌊 💥

Watch on YouTube: https://www.youtube.com/watch?v=-AvUp0olQ4k

16/02/2026

Community: Conservation Starts with People

11/11/2025

When you see a manta ray gliding gracefully through the water or a whale shark peacefully filter-feeding, it’s easy to be mesmerized. But these creatures are far more than beautiful – they’re vital to ocean health.

Why They Matter: Sharks are apex predators that regulate prey populations and maintain ecosystem balance. Manta rays and whale sharks are oceanic filter feeders that play crucial roles in nutrient cycling. Their presence indicates a healthy marine environment. Lose them, and entire ecosystems begin to collapse.

The Crisis We Face: Despite existing protections, one-third of all shark and ray species face extinction in our lifetime. Overfishing for fins, meat, and gill plates, combined with destructive bycatch practices and illegal wildlife trade, are decimating populations faster than they can recover. These slow-growing species simply can’t keep up.

A Critical Moment: This November, governments worldwide meet at the CITES CoP20 Summit to vote on protecting manta rays, whale sharks, and oceanic whitetip sharks. The proposal? Appendix I status – the highest level of protection that would ban international commercial trade.

PADI AWARE Foundation is the only organization representing the dive community at this crucial meeting, advocating for these species’ survival.

At Black Turtle Conservation, Black Turtle Dive and Eco Koh Tao, we stand firmly with PADI AWARE in this mission. Sharks require urgent legal protection due to their role as apex predators—their conservation is essential for preserving the health and biodiversity of marine ecosystems.

How You Can Help:
📝 Sign the petition (Nov 1-21) – Your signature adds pressure on governments to vote YES for protection.
💙 Support the Global Shark & Ray Census – The world’s largest diver-led monitoring program, providing critical data that shapes policy and protections.
🌊 Donate – Fund long-term conservation efforts and advocacy for stronger protections.

The ocean’s guardians need our voices. Will you join us?
🔗 Take action: https://www.padi.com/aware/sharks

Conservation Diver PADI

10/11/2025

Understanding Tourism Impact on Shark Nurseries 🦈

We're excited to share one of our most important research initiatives—a collaborative study examining how diving tourism affects black tip shark nursery areas around Koh Tao and across Thailand.

The research question is critical: As diving destinations become more popular, how does human presence impact the shark nursery habitats essential for these species' survival?

Our focus site is Aow Leuk Bay, one of Koh Tao's most visited locations and a crucial nursery area for juvenile black tip sharks. These shallow, protected bays provide perfect conditions for young sharks to grow before venturing into deeper waters.
We conduct shark surveys every Tuesday at 3:30 PM - meet us at Black Turtle and let us know if you want to join! Our Conservation Diver Instructor Seth leads these surveys, bringing his expertise and passion for shark research to every dive.

We're collaborating with multiple conservation organizations to compare tourism-exposed nurseries like Aow Leuk with protected sites that have minimal human interaction.

Why this matters: Black tip sharks play crucial roles in marine ecosystem health, but their nursery areas are increasingly under pressure from coastal development and tourism. Understanding these impacts helps us develop science-based management strategies that protect both sharks and sustainable tourism.

Marine research with real-world applications—generating knowledge that directly informs conservation decisions.

Science in action, protecting the next generation of sharks. 🌊🔬

06/11/2025

Crown of Thorns: Monitoring for Reef Protection ⭐

One of our most critical research projects focuses on crown of thorns starfish (COTS) monitoring around Koh Tao's reefs. These coral predators can devastate reef communities when populations reach outbreak levels.

Crown of thorns are natural reef inhabitants at normal densities, but when their numbers explode, they consume coral faster than reefs can recover. Our monitoring program tracks COTS populations across dive sites, looking for early warning signs of outbreak conditions.

September was critical. Our monitoring revealed concerning COTS levels across several sites. Armed with this data, our team conducted targeted removal operations - each crown of thorns removed represents coral colonies saved from predation.

Our removal efforts aren't random—they're scientifically guided by our monitoring system that detects problems before they become full-scale outbreaks.

We conduct COTS surveys every Wednesday - message us if you want to join! Our Conservation Diver Instructor Cass ( ) leads and monitors this data collection, ensuring scientifically rigorous surveys that provide reliable population tracking.

This is adaptive reef management—using continuous scientific monitoring to guide conservation actions that protect coral communities.

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03/11/2025

Ecological Monitoring Program (EMP) 🔬

Ready to dive deeper into marine conservation science? Our Ecological Monitoring Program introduces you to professional reef survey methods and scientific diving techniques that form the foundation of marine research.

This comprehensive 4-day program teaches you to systematically assess reef ecosystems—from fish populations and invertebrate communities to substrate composition and coral health. You're not just observing the reef; you're learning to document and understand it scientifically.

Course Details:
📅 Runs every 1st and 15th of each month
📚 E-learning + 4 classroom sessions + 6 training dives
🎓 Conservation Diver certification included
💰 11,900 THB
*Prerequisites: Advanced Open Water certification required.

Here's what makes it meaningful: Every survey you conduct and every data point you collect contributes to an international database used by researchers worldwide. Your work becomes part of the global effort to monitor and protect coral reef ecosystems.

Once you complete this course, you'll understand marine ecosystems on a completely different level. You'll never dive with the same perspective again! Every future dive becomes an opportunity to assess ecosystem health—you'll recognize diversity patterns, abundance indicators, and understand exactly why some reefs thrive while others struggle.

The EMP serves as a prerequisite for most of our advanced conservation courses, making it the essential first step for anyone serious about marine conservation science.

From recreational diver to conservation contributor—the journey starts with understanding how to study what you're protecting.

Limited spots available! Message us to book your spot and take the first step toward becoming a conservation diver.

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01/11/2025

Why Coral Restoration Matters?

Coral reefs are among the most biodiverse ecosystems on Earth, yet they're facing unprecedented threats. In Koh Tao, we witness both the beauty and vulnerability of these underwater cities every day.

The reality is sobering: Global warming, ocean acidification, pollution, and physical damage are destroying coral reefs faster than they can naturally recover. Some areas around Koh Tao have lost significant coral cover over the past decades.

But here's the hope: Corals are remarkably resilient when given the right conditions. They can recover, adapt, and thrive—they just need our help to get there.

This is where restoration makes the difference. We're not just watching reefs decline—we're actively rebuilding them. Every coral fragment we transplant has the potential to become a thriving colony. Every artificial reef structure we install creates new habitat for marine life. Every monitoring dive ensures our restoration efforts are working.

Our restoration projects provide immediate benefits: new substrate for coral growth, shelter for fish populations, and increased reef complexity that supports biodiversity. But the long-term impact is even greater—we're rebuilding the foundation that entire marine ecosystems depend on.

The science is clear: restored reefs can become as diverse and productive as natural ones. Fish return, coral coverage increases, and ecosystem services like coastal protection and tourism value are restored.

When you see juvenile fish taking shelter in restored coral structures, or watch new coral polyps settling on artificial reefs, you're witnessing regeneration in action. These aren't just conservation projects—they're investments in ocean resilience.
Coral restoration isn't about replacing nature—it's about giving nature the boost it needs to heal and thrive in our changing world.

This is why we build, transplant, monitor, and maintain. Because every restored reef is a victory for marine biodiversity and ocean health. 🌊✨

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30/10/2025

Thank you PADI for your support and for helping us share our story. Let’s keep inspiring others to fall in love with the ocean and stand up to protect it! 🙌🏽💙🌊

29/10/2025

Our Conservation Students 🎓

Some of our favorite moments happen when we see curiosity turn into genuine conservation passion. Our marine conservation courses bring together students from around the world, eager to learn hands-on science and make a real difference for ocean health.

Students don't just study marine biology—they participate in actual research projects, learn survey techniques, and contribute meaningful data to ongoing conservation efforts. From monitoring dives to coral health assessments, every activity teaches scientific methodology and practical skills.

The transformation is incredible. Students arrive excited but uncertain. Within days, they're confidently identifying species, collecting data, and understanding the connections between human activities and marine ecosystem health.

Huge shout out to our incredible October students: Sofia, Joshua, Stefano, William, Ella, Jordan, Dulce, Jana, and Vivian! Your dedication and enthusiasm have been absolutely inspiring. Watching you grow as conservationists this month has been amazing!

Many leave to start their own conservation initiatives, change career paths toward marine science, or become lifelong ocean advocates. All carry forward practical skills and the understanding that effective conservation requires community and consistent action.

The future of our oceans is in great hands. 🌊📚

26/10/2025

The Power of Community Beach Clean-ups 🏖️

Every Sunday at 6pm, something beautiful happens on Koh Tao's beaches. Locals, tourists, divers, and conservationists come together with one mission: protecting our coastlines from plastic pollution.

Gloves on, bags in hand, walking the shoreline collecting debris. But the impact runs deeper than what we see: every plastic bottle, fishing line, and food wrapper we collect prevents harmful materials from entering our marine ecosystem. That bottle cap might have been mistaken for food by fish. Those plastic bags could entangle sea turtles. Each piece removed breaks the pollution cycle.

Our weekly clean-ups combine action with education. Participants see firsthand how human activities impact marine life and learn how small actions create meaningful change. Some of our most dedicated conservationists started as beach cleanup volunteers.

This is grassroots conservation at its finest. No advanced degrees required, no special equipment needed. Just caring people willing to show up for ocean health.

Join us this Sunday at 6pm at the Green Deck of Black Turtle Dive, right in front of the turtle at Mae Haad! Help us build something powerful: a community that actively cares for its environment. Because healthy beaches create healthy reefs, and healthy communities create lasting change. 🌊✨

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22/10/2025

Sea Slug Diversity Research 🐌

We're studying one of Koh Tao's most colorful reef communities— sea slugs. These tiny creatures might hold important clues about reef health and habitat complexity.

Our research question: Does substrate diversity impact sea slug species diversity? We want to understand if more complex reef environments support more nudibranch species than simpler habitats.

Why sea slugs? These creatures are highly specialized feeders with specific habitat requirements, making them potential indicators of ecosystem health and reef complexity.

Our approach: We conduct systematic surveys across different reef sites, documenting sea slug species while recording the types of substrate and habitat structures present. Each survey involves careful searching through various microhabitats and photographing every species we encounter.

Here, our Conservation Specialist students this month were learning about sea slugs and how to monitor them - gaining hands-on experience in identification techniques and data collection methods that contribute directly to this research.

What we're looking for: Patterns between habitat complexity and species diversity. Do sites with varied substrate types host more sea slug species? How does reef structure influence these communities?

This research is still developing, but the goal is to better understand how habitat diversity influences marine biodiversity. The findings could help inform future restoration and conservation strategies.

Every dive adds valuable data to help us understand these fascinating reef inhabitants and what they can tell us about ecosystem health.

Small creatures, important questions. 🔬

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08/10/2025

Explore the evolution of marine conservation at Black Turtle Dive. Join our team of scientists, researchers and conservationists as they embark on an excitin...