This dive site, known as Secret Reef, is Cambodia's deepest dive location and a challenging adventure located off the coast near Koh Rong. It requires advanced diving skills due to its significant depth and consistent currents, making it difficult to locate without local guidance. Underwater, divers will explore scattered patches of rocks and shelves, providing a rugged and varied topography. No specific historical events or unique stories are mentioned regarding the discovery or naming of this reef.
The marine ecosystem at Secret Reef is rich, featuring extensive coverage of whip coral, soft coral, and hard coral, which collectively create a vibrant habitat for diverse reef fish. This site is particularly renowned for its shark sightings, making it a key attraction for divers hoping to encounter larger pelagic species in Cambodia.
The optimal period to explore Secret Reef aligns with Cambodia's dry season, typically from November to May, when sea conditions are generally calmer and visibility tends to be at its best. Given the depths and currents, this site is exclusively suitable for divers holding an advanced or deep dive certificate. Snorkeling and freediving are not recommended due to the challenging conditions and the primary appeal lying in the deeper sections of the reef.
