This dive site, Similan Island #9 (Koh Bangu), is the northernmost island in the main Similan cluster, offering a wide array of diving experiences. Divers can explore sheltered, quiet bays, exhilarating drift dives through channels, and dramatic pinnacles formed by giant granite boulders. Underwater navigation varies from straightforward reef explorations to more dynamic drift conditions, catering to different skill levels and preferences, ensuring there's something for everyone.
The marine environment is exceptionally rich, featuring diverse hard and soft corals, vibrant sea fans, and large barrel sponges, creating a colorful and thriving ecosystem. Encounters with larger marine life are common, including leopard sharks, barracuda, giant morays, and various reef sharks. Green and hawksbill turtles are also frequently sighted. For those with a keen eye, the site also boasts an abundance of macro life, adding to its biodiversity and making it a delight for underwater photographers.
The Similan Islands, including Island #9, are best visited during the dry season, typically from November to May, when water conditions are optimal with excellent visibility and calm seas. Divers of all levels will find suitable conditions, though those interested in drift dives should be comfortable with moderate currents. Freedivers will appreciate the clear waters and varied topography, with accessible depths and abundant marine life suitable for breath-hold exploration. Remember to dive with a reputable operator as the Similan Islands are a protected national marine park.

