Blue Hole (Dahab)
The bowl is given as just over 100 m (Wikipedia) or 120 m (Circle Divers); the Arch's top is at about 52-55 m. No single maximum is given here.
A reef-rimmed marine sinkhole north of Dahab on the Gulf of Aqaba, over 100 m deep, linked to the open sea by a shallow saddle and by a deep tunnel called the Arch whose top lies at about 52-55 m.
The Blue Hole is a submarine sinkhole in the reef about 10 km north of Dahab, on the Sinai coast of the Gulf of Aqaba. Its bowl drops to somewhere between 100 m and 120 m depending on the source. A shallow saddle at about 6-7 m connects it to the outer reef, and divers often enter via the Bells, a narrow chimney a short distance to the north.
At depth a tunnel called the Arch, about 26 m long, links the hole to the open sea; its top lies at roughly 52-55 m and the floor falls away on the seaward side. Although the overhead section is short, its depth puts it outside recreational limits, and the site has a long history of fatal accidents among divers attempting it without the right training or gas.
A Dahab dive centre describes the Arch as a technical dive only, to be done by certified technical divers on a planned decompression dive with mixed gases and redundant equipment.
The Blue Hole lies in the Abu Galum Protected Area and draws more than 110,000 visitors a year. In 2026 Egypt's Ministry of Local Development and Environment reviewed a plan to reorganise the site, regulate marine activities and cap visitor numbers; no implementation timetable had been published.
Tại sao điều này quan trọng
One of the Red Sea's best-known dive sites and the main documented overhead dive in Egypt. Its Arch is a short tunnel whose hazard comes chiefly from its depth.
Lối vào và địa điểm lặn
Open-water entries from the shore over the saddle (about 6-7 m) or via the Bells chimney; the Arch is a deep tunnel to the open sea.
Để định hướng, không dùng để điều hướng. Các chấm rỗng là vị trí gần đúng.
Mọi thông tin trên trang này kèm theo nguồn (8)
| Thông tin | Trạng thái | Nguồn |
|---|---|---|
| The Blue Hole lies about 10 km north of Dahab on the Gulf of Aqaba coast, in the Abu Galum Protected Area. | Đã báo cáo | [1] [2] |
| Area-level coordinates rounded from the published position of the Blue Hole north of Dahab. | Đã báo cáo | [3] [1] |
| The Blue Hole is described as just over 100 m deep by one source and 120 m deep by another. | Nguồn thông tin mâu thuẫn | [3] [1] |
| The Arch is a tunnel about 26 m long linking the hole to the open sea, with its top at roughly 52-55 m.Circle Divers gives the top as about 52 m and the depth as about 55 m; Wikipedia gives a 55 m ceiling. | Nguồn thông tin mâu thuẫn | [1] [3] |
| A shallow saddle at about 6-7 m connects the hole to the reef outside. | Đã báo cáo | [1] [3] |
| A Dahab dive centre states that the Arch is out of bounds for recreational divers and should only be attempted by certified technical divers on a planned decompression dive with a qualified technical centre.Provider statement; no official rule text found. | Đã báo cáo | [1] |
| The site receives more than 110,000 visitors a year for scuba diving, freediving and snorkelling. | Đã báo cáo | [2] |
| A 2026 plan reviewed by Egypt's Ministry of Local Development and Environment proposes regulating marine activities, upgrading facilities and capping visitor numbers according to carrying capacity; no timetable was published. | Đã báo cáo | [2] |
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