This dive site, Deep Six, is situated at the northern apex of the seventh island within Thailand's renowned Similan Islands, specifically at 8.5985, 97.6370. It is characterized by impressive granite boulders, which have been sculpted into 'steps' by persistent tidal currents, creating a unique and dramatic underwater landscape from the bottom upwards. While no specific historical account is provided for the site, its location at a prominent point often results in excellent drift diving opportunities as divers explore the intricate boulder formations.
The marine life at Deep Six is vibrant and diverse. Schools of Damselfish and Yellowback Fusiliers are frequently seen dancing around the outside of the point, adding dynamic color to the clear waters. In the deeper sections of the dive site, particularly during early morning hours, divers have a good chance of encountering larger pelagic species such as Whitetip Reef Sharks. While not explicitly detailed, the healthy hard and soft coral growths typical of the Similan Islands likely adorn the granite structures, providing shelter and sustenance for a variety of reef fish and smaller marine organisms.
Deep Six is best visited during the dry season, typically from November to April, when sea conditions are generally calmest and underwater visibility is at its peak. Divers should be prepared for and mindful of the variable tidal currents, which can range from mild to strong, especially when navigating around the exposed point. Early morning dives are highly recommended for the best chances of spotting sharks and other pelagic species. Freedivers will find the clear visibility and average depth of 12 meters appealing, though current awareness is crucial for a safe and enjoyable experience. The impressive granite structures and schooling fish offer excellent opportunities for wide-angle underwater photography.
