Green Sea Turtle in Koh Chang – Life, Diet & Best Dive Sites
The Green Sea Turtle (Chelonia mydas) is one of the most fascinating marine creatures frequently spotted in Koh Chang. The best places to see them include HTMS Chang Wreck, Hin Raab South, Blueberry Hill, and Hin Sam Sao.
1. Characteristics & Biology
- Scientific Name: Chelonia mydas
- Size: Up to 1.5 meters in shell length
- Weight: Between 100 and 180 kg
- Lifespan: Up to 80 years
A hawksbill sea turtle (Eretmochelys imbricata) resting at the anchor winch of the HTMS Chang wreck off Koh Chang. This unique combination of marine life and sunken history makes the dive site truly special.
2. Habitat & Behavior
Green Sea Turtles thrive in seagrass beds and coral reefs. They are often spotted at:
- 🟢 HTMS Chang Wreck – Turtles resting on decks
- 🟢 Hin Raab South – Coral gardens
- 🟢 Blueberry Hill – High biodiversity area
- 🟢 Hin Sam Sao – Best sightings in early mornings
3. Diet & Feeding Habits
Green Sea Turtles are primarily herbivores. Their diet includes:
- 🌿 Seagrass
- 🌊 Algae
- 🐠 Occasionally jellyfish or small fish
4. Threats & Conservation
Green Sea Turtles are threatened due to:
- 🚯 Plastic pollution
- 🎣 Entanglement in fishing nets
- 🌡️ Climate change affecting their nesting sites
How can you help? Practice responsible diving!
5. Best Places in Koh Chang to Spot Turtles
| Dive Site | Special Features |
|---|---|
| HTMS Chang Wreck | Turtles resting on decks, often in 18–25m depth |
| Hin Raab South | Shallow coral gardens with seagrass |
| Blueberry Hill | Small site but high turtle density |
| Hin Sam Sao | Best sightings in the early morning |
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Learn more about marine life in Koh Chang or book your dive course now!