Aida

The Aida spent her working life on one of the loneliest rounds in the Red Sea: ferrying keepers, soldiers, water, and stores to the lighthouse islands between Suez and the deep south. Built in 1911, she was still at it in September 1957 when she came in to Big Brother to rotate the garrison. The island offers no anchorage worth the name, and in rising swell the approach went wrong; she was thrown against the reef and holed. Accounts of the evacuation vary in their details, but the ship was lost, and her stern half slid down the island's western wall while the shallow bow section broke up in the surf. What remains is a steep, atmospheric dive: railed decks tilted against the wall from about thirty meters, dissolving into blue below, every surface claimed by soft coral. She is usually dived in the same liveaboard visit as the Numidia, her older neighbor around the point.

她是如何沉没的: Driven onto Big Brother Island in heavy weather while landing personnel, September 1957.

环境条件: The surviving stern is coherent but steadily corroding; the bow area is scattered plate in the shallows.

穿越式潜水: Limited. The open stern decks allow brief sheltered passes; enclosed spaces sit deep enough that they belong to technical divers. 进入任何封闭式环境均需专项培训——至少取得沉船潜水认证，进行完整穿越须完成技术沉船培训。

建议持有证书: Deep-trained Advanced Open Water; technical certification to explore below 40 m

水流: Strong · 能见度: 20–40 m

海洋生物: Soft coral thickets, longnose hawkfish on the fans, anthias over the rails, and grey reef sharks cruising the wall off the wreck.

危险因素: Everything starts at 30 m and slopes away; add island currents and no easy exit, and this is a dive for disciplined buddy teams.

Within Egypt's marine-park islands; liveaboard permits and park fees apply.