Koh Tachai Pinnacle

South of Koh Tachai island, a granite dome crests around 12 m and takes the full force of the Andaman's tidal exchange, which is precisely why everything gathers there. Trevally spiral in dense chimneys, barracuda hold formation up-current, batfish wander the terraces, and both mantas and whale sharks transit often enough to keep every diver glancing at the blue. The diving is work: pull down the line, tuck behind granite, move in the lulls. The island's famous beach has been closed to tourism since 2016 for recovery, but this offshore pinnacle remains on liveaboard schedules, conditions permitting.

바로 그 순간: Trevally tornadoes in ripping flow, manta and whale-shark transits, big-current craft

지형: Submerged granite dome with boulder terraces

조류: Among Thailand's strongest-current sites; some slots are simply undiveable and crews wait for the tide.

진입: Descents run down a fixed line to the dome; in strong flow, crews stage negative entries and shorten the plan.

위험 요소: Severe current, down-eddies off the dome's flanks, and blue-water ascents; SMB and line discipline are mandatory.

보존: Koh Tachai's land closure is a park recovery measure; the pinnacle stays open under standard park rules.

나이트록스: 여기서는 가치 있습니다 — 수치 범위상 나이트록스를 사용하면 무감압 시간을 의미 있게 연장할 수 있습니다(단, 관련 교육 이수 필요).