Southwest Pinnacle
is often considered the twin to Chumphon Pinnacle. Located about 13km southwest of Koh Tao, this offshore site consists of a series of spectacular limestone peaks rising from the sandy bottom. While Chumphon is famous for its massive schools, Southwest is celebrated for its dramatic, jagged topography and vibrant carpet of sea anemones.
Key Details
- Depth: 7 to 30 meters. The shallowest point of the main pinnacle starts at 7m, while the outer rocks drop to 28–30m.
- Skill Level: Advanced Open Water (due to the depth, potential for strong currents, and its offshore location).
- Visibility: 10 to 30 meters. Like most offshore sites, it usually offers excellent clarity.
- Topography: Seven distinct pinnacles of varying heights. The main central pinnacle is the largest, surrounded by smaller satellite peaks that create a series of “valleys” and ridges to explore.
Marine Life
- The “Secret Garden”: The upper levels of the pinnacles are famously covered in a dense, pulsing carpet of green, pink, and orange magnificent sea anemones.
- The Big Stuff: This is a prime spot for Whale Sharks. It is also one of the best locations to see Grey Reef Sharks (though they have become rarer in recent years) and large Great Barracuda.
- Schools: You will likely be surrounded by massive schools of Yellowtail Snappers, Chevron Barracuda, and Big-eye Trevally.
- The Sand: If you head to the deeper sandy areas surrounding the rocks, look for Leopard Sharks (occasionally resting) and large Blue-spotted Ribbon-tail Rays.
- Macro: In the crevices of the rocks, keep an eye out for Boxfish, Moray Eels, and Durban Dancing Shrimp.
Location
9.9991009,99.7766133; XQXH+JMP, Ko Tao; Get directions
