Koh Tachai Pinnacle/The Dome

Koh Tachai Pinnacle, also known as The Dome, is situated approximately 500 meters south of Tachai Island. This dive site features a prominent dome-shaped bedrock resembling an inverted plate, with a significant granite boulder nearby. The pinnacle reaches a depth of 12 meters, and divers should be aware that currents can be quite strong, varying with conditions. The area is known for its diverse marine life, including large predatory species such as blue and white trevally, bluefin tuna, barracudas, manta rays, and whale sharks. The mid-water column is populated by various fusiliers, including yellowbacks and blue dashes, which are often preyed upon by bluefin trevally and large schools of blackfin barracuda, particularly during dawn and dusk.