Darwin's Arch (Darwin's Pillars)

The famous rock arch beside Darwin Island collapsed in May 2021, leaving two pillars, but the dive below never depended on the architecture. Divers drop onto a boulder platform at 12-20 m nicknamed the theater, brace against the current, and watch the eastern Pacific commute past: scalloped hammerheads in ranks, Galapagos sharks quartering the edge, turtles laboring across the flow. In the cool season the main event arrives from the blue - whale sharks, most of them enormous females, that pass the platform on patrol. The ascent drifts into open water, blue and bottomless, which is where safety-stop silkies like to make their inspection.

その瞬間のために: Whale sharks June-November, walls of hammerheads, Galapagos sharks at arm's length, dolphin flybys

地形: Sloping boulder platform ending in a drop to deep water

流れ（カレント）: Current sets the plan; divers wedge in behind boulders on the platform, then drift off into the blue for the ascent.

危険生物・リスク: Strong current, surge over the platform, blue-water ascents far from the boat; panga pickups require a DSMB.

保全: Within the Galapagos Marine Reserve; no contact with the reef, and only permitted liveaboards may dive here.

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）。