Okikawa Maru

The Okikawa Maru, an oil tanker on the order of 160 m, is the friendliest big ship in Coron: her main deck lies at just 10-16 m, shallow enough for long, unhurried laps of a hull that seems to go on forever. Corals and anemones have colonized the deck fittings so thoroughly that parts read as reef, patrolled by batfish, sweetlips, and turtles. The bow section, mangled by the 1944 attacks and later salvage, makes dramatic wide-angle scenery, and trained divers can thread the propeller-shaft tunnel and pump spaces. Generous light, generous time; many divers log their first-ever wreck penetration here.

その瞬間のために: Shallow sprawling tanker deck, coral-and-anemone overgrowth, approachable first penetrations

地形: Nearly upright hull on sand around 26 m

流れ（カレント）: More exposed than the inner bay wrecks; current over the deck is common and occasionally calls the dive.

エントリー: Moored off Concepcion on Busuanga's west side; the longest boat ride of the main fleet from Coron town.

危険生物・リスク: Current over the deck, entangling lines near the bow wreckage, and silt in the shaft tunnel.

保全: Part of the protected 1944 fleet; no artifact recovery, no souvenir chipping.

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）。