08/01/2026
⚓🌊 Wreck 313
Wreck 313 is a purposely sunk naval vessel off Koh Tao, resting upright with the deck around 18–20m and the seabed near 30m—ideal for recreational wreck diving and skill-building.
Now a thriving artificial reef, it attracts barracuda, batfish, trevally, groupers, and occasional turtles, especially when currents bring in nutrients. It’s a great site to practice buoyancy, navigation, and wreck awareness, not just sightseeing.
🤿 Best for: Advanced Open Water
📅 Best season: March–September