Shark & Yolanda Reefs

Two coral towers rise from a shared plateau off the very tip of Sinai, separated by a saddle and swept by the currents that make Ras Mohammed famous. Divers drop at Anemone City, cross to Shark Reef's vertical wall - a drift over deep blue with snapper, batfish, and barracuda massing in summer - then finish over Yolanda Reef among scattered toilets, bathtubs, and pipe fittings: cargo spilled by the freighter Jolanda, which ran onto the reef in 1980 before her hull slid down the drop-off; technical divers relocated it below 145 meters in 2005. A resident Napoleon wrasse usually inspects the traffic. In July and August the fish aggregations here rank with anything in the Red Sea.

その瞬間のために: Summer snapper and batfish walls; Shark Reef's sheer drop; Yolanda's porcelain cargo field; resident Napoleon wrasse.

地形: Two coral towers on a shared plateau over a wall that drops several hundred meters

流れ（カレント）: Flow at the point can strengthen mid-dive and split around both towers; guides read it on descent.

エントリー: Dived as a drift inside Ras Mohammed National Park; groups usually drop at Anemone City and finish over Yolanda Reef.

危険生物・リスク: Current shear at the point, boat traffic at the surface, and the temptation to overstay depth on the wall.

許可証＆ルール: National park fee, normally collected by the operator.

保全: Ras Mohammed National Park rules apply: no touching, no gloves, no collection of the Jolanda cargo.

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）。