Olympia Maru

The Olympia Maru, a freighter in the 120 m class from the same September 1944 catastrophe, is the fleet's crowd-pleaser: shallow enough for relaxed bottom times, big enough to feel like an expedition, and colonized to the waterline of its former life. Batfish escort divers along the hull in loose formation, glassfish pour out of companionways in silver smoke, and scorpionfish upholster the winches. Holds and engine spaces offer straightforward guided penetration lines with visible exits for those with training. As an introduction to what Coron does, most guides start people here or on the Okikawa, and few argue.

その瞬間のために: Batfish escorts and glassfish clouds, forgiving depths, an ideal first Coron wreck

地形: Hull on its side on sand around 25-30 m

危険生物・リスク: Silt and sharp edges; easy to overstay on the deeper sand line.

保全: Same protections as the rest of the 1944 fleet; the growth on the hull is decades old and irreplaceable.

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）。