MV Trident Wreck: Advanced Diving off Koh Tao

The MV Trident lies just southwest of Shark Island, deliberately sunk in 2010 to serve as an artificial reef and extend Koh Tao's underwater landscape. This former technical liveaboard was chosen for its structure, providing immediate shelter and exploration opportunities at depth. Its intentional submersion aimed to quickly create new habitats, and the wreck has since become a focal point for marine life, establishing itself as a distinct dive within the region's artificial reef program.

Your descent to the MV Trident begins as you drop towards its deck, which starts around 26 metres. The wreck then slopes down to a maximum depth of 37 metres, presenting a deeper profile than many other wreck sites in the area. This depth exposure means careful gas management and no-decompression limits are essential, requiring attention to your bottom time as you navigate the vessel's structure. The dive unfolds vertically, allowing you to gradually explore different sections as you gain depth.

As you approach the wreck, you'll often see schools of barracudas (Sphyraena barracuda) circling above and around the main structure. These pelagic hunters are a common sight, using the wreck as a congregating point, especially when currents are running. Further down, giant groupers (Epinephelus lanceolatus) hold territory within the more intact sections of the vessel. Their presence indicates a healthy established ecosystem, with the wreck acting as a significant food source and shelter for these larger predators.

Exploring the exterior of the MV Trident reveals a growing encrustation of corals and sponges, already attracting a variety of reef fish. Batfish (Platax orbicularis), curious and often approaching divers, are frequently encountered near the deck and superstructure. Their distinctive shape makes them easy to spot against the wreck's dark silhouette. The combination of established marine growth and these resident species gives the Trident a settled, natural feel, far removed from a freshly sunk vessel.

The MV Trident's position in a relatively sheltered bay south of Shark Island contributes to varied diving conditions. While currents can occur, they are generally less pronounced than on exposed pinnacles, though this can vary with tides and seasonal changes. Visbility can range from 10 to 30 metres, offering clear views of the wreck and its inhabitants on good days. The structure itself is substantial, providing numerous points of interest for divers who take the time to explore its various levels and compartments.

Compared to other wrecks in the area, the MV Trident offers a different challenge and profile. Its depth range, extending into the technical diving realm, makes it a destination for those comfortable with deeper exposures and potentially longer bottom times. The site has also become a reliable location for encountering specific species like the larger groupers and schooling barracudas, offering a consistent pelagic experience against a substantial artificial structure.