Dahab · about 8 km from Dahab
Blue Hole Arch (Dahab)
- Max depth60 m
- CertificationCavern
- Water temperature≈ 22–30 °C, varies with the seasonestimated, no reports yet
- SpecialExperienced divers
Diving and fills
Dive here with
The dive
Not a cave but a short arch through the reef, with daylight at both ends; the depth is what makes it dangerous. Recreational divers stay with the Bells and the Saddle.
1 earlier accident or incident has been reported at this cave. Read what happened ↓
Profile and sections
Not a cave but a short arch through the reef, with daylight at both ends; the depth is what makes it dangerous. Recreational divers stay with the Bells and the Saddle.
Practical: the coordinates come from Wikipedia and are approximate.
- Depth and profile
- A round sinkhole just over 100 m deep with a shallow opening to the sea, the Saddle (~6–7 m). Deep in the wall a ~26 m tunnel to the open sea: its ceiling is at 52–55 m according to the sources (H2O gives 50–60 m), the seaward side drops to ~120 m.
- Configuration
- Technical deep dive with decompression: trimix, redundant gear and deco gas (Circle Divers, Scuba Seekers). Twinset, sidemount and CCR are used (estimate).
- Gas
- Trimix from 40 m
Who can dive where
- At least Cavern
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Goes down to 60 m (trimix or deco may be needed)
- Experienced divers only
This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.
How to get there
Shore dive ~10 km north of Dahab: you enter at the Blue Hole or through the Bells. Only with a local dive centre that guides technical dives; per Aquarius Red Sea (2026) the CDWS requires a local guide and Tec 60 at least. Entrance fee on the road.
Around Blue Hole Arch (Dahab)
FillsNo fill station known nearby
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Other sites1 within 1 km
News
All (1)
Accidents and incidents
What happened at this cave before, with the sources. No names are given; read it as a lesson for your own planning.
- A great many divers have died at the Blue Hole, almost all of them trying to reach the Arch. In 2012 a local diving expert estimated more than 130 deaths in the 15 years before; other estimates go up to 200 (not accurately recorded, snorkellers included). Memorial plaques line the shore.
Access and rules change: check what applies locally right before your trip. Source: GDELT Project and the news feeds of diving magazines. Search for more news ↗ Searched automatically, last on 5 Nov 2026.
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