This dive site, known by several names including Rayong Pinnacle, Alhambra Rock, or Hin Plerng, is celebrated as Rayong's most famous diving destination. It comprises two distinct pinnacles, the West and East (Hin Pleng East being one of them), rising from the seafloor. Divers typically navigate around the pinnacle's diverse coral formations, exploring its slopes and crevices. While no specific historical events are detailed, its various names suggest a long-standing recognition among local divers and seafarers.
The pinnacles are covered with a rich variety of coral species, forming a vibrant underwater ecosystem. This site is teeming with marine life, including common sightings of yellow snapper and barracuda in schooling formations. Macro enthusiasts will delight in finding nudibranchs, saw blade shrimp, and razor fish. Occasionally, divers are treated to the majestic presence of whale sharks, making it a truly special encounter.
The best time to visit Hin Pleng East generally aligns with Thailand's dry season (typically November to April) for optimal conditions, though whale shark sightings can be unpredictable but often occur during plankton blooms. Divers of all levels will find this site rewarding due to its manageable depths and abundant life. Freedivers will also appreciate the average depth of 9 meters and maximum depth of 18 meters, offering ample opportunity for breath-hold exploration of the coral-covered pinnacles.
