Kinasi Pass

Kinasi Pass is the artery of Mafia Island Marine Park. On the incoming tide, clean ocean water pours through the gap into Chole Bay and the pass becomes a conveyor: divers drift over coral terraces while grouper hold their stations, barracuda and trevally hunt the funneled baitfish, turtles angle across the flow, and ribbontail rays hug the sand below. The coral on the walls stays remarkably intact for a working channel. Timing is everything — the outgoing tide dumps green bay water and is avoided — and on spring tides the ride is quick enough to demand attention. The park's signature dive, in every sense.

その瞬間のために: Incoming-tide drift through the marine park's main channel; grouper and hunting jacks

地形: Channel walls and coral terraces funneling oceanic water into Chole Bay

流れ（カレント）: The main tidal gate of Chole Bay; dived on the incoming tide and planned around slack windows.

危険生物・リスク: Strong tidal current and mid-channel boat traffic at the pass mouth.

許可証＆ルール: Marine-park daily fee applies.

保全: Inside the marine park; drift, don't grip — the channel coral takes decades to replace.

ナイトロックス: ここでは効果的です——このエリアのプロファイルは、ナイトロックスが無減圧潜水時間を有意に延ばせる水深帯にあります（適切なトレーニングを受けていることが前提です）。