Cenote Angelita

Angelita stages the strangest scene in Yucatan diving. The descent is plain green water until, near 30 m, a thick white sulfide cloud spreads wall to wall like the surface of a second, ghostly lake. A mound of rock and drowned trees pierces it, so divers appear to stand on a misty river island at the bottom of the world. Below the layer the water turns dark and tannic; most plans touch it briefly, if at all, then climb back to the sunlit rim. There is little decoration and less fish life — the dive is pure atmosphere, and it lingers in memory like weather.

その瞬間のために: The false lake of hydrogen sulfide, drowned trees in the mist, surreal deep atmosphere.

地形: An open vertical sinkhole; a rubble island crowned with sunken trees breaks a dense hydrogen-sulfide layer near 28–30 m.

エントリー: Short jungle walk south of Tulum to a round, open pool; giant-stride from the rock edge.

危険生物・リスク: Deep profile with a dark, disorienting layer; below the cloud light and visibility drop sharply. Conservative gas and depth plans only.

許可証＆ルール: Private land; entrance fee at the gate, guided diving expected.

保全: Small site with fragile rim vegetation; keep groups tight and fins off the mound.

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）。