El Bajo Seamount

El Bajo is a piece of diving history that still earns its place honestly. In the 1970s and 80s this seamount northeast of Los Islotes made the Sea of Cortez famous as the place to swim with schooling hammerheads; overfishing in the wider gulf has since thinned those schools drastically, and today a hammerhead here is an event rather than an expectation - a decline worth stating plainly. What remains is a strong open-water dive: mobula squadrons pulsing over the ridges, big amberjack and tuna hunting through, green morays in the rocks, dolphins on the crossing, and the occasional whale shark cruising past on migration. Old glory, current honesty, still worth the fuel.

その瞬間のために: Mobula flights over the ridges, pelagic traffic, the gulf's most storied seamount

地形: Three rocky ridges rising from deep water to about 18 m

流れ（カレント）: An open-water bank; current and chop decide whether boats make the run.

危険生物・リスク: Open-water exposure, current over the ridges, depth accumulating quickly off the crowns.

保全: The hammerhead decline here is one of the gulf's cautionary tales; report sightings to your operator - local monitoring uses them.

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）。