The Canyon

Cross a sandy lagoon from the shore entry — knee-deep at low water, up to three metres — then follow the coral garden out along the reef wall. At 18 to 20 metres the reef opens into a large crack: the canyon entrance. Drop into the fissure. Inside, the walls narrow and the light changes. The main chamber floor sits at 28 to 30 metres on sand.

Two things happen at once down here. Thousands of glassfish hold position around the old Fishbowl dome overhead, and every time a diver exhales, the bubble column disperses them and they reform seconds later in a new cloud formation. Above, light shafts cut through ceiling cracks and shift as the sun moves across the rock. The sound of your own breathing is amplified by the walls.

Technical divers continue past the main chamber, following the fissure as it narrows and descends to the deep exit at 50 to 55 metres, where the canyon opens back to the outer wall drop-off. From there, they re-enter and ascend with decompression obligations. Recreational divers turn at the chamber floor and exit through the main western aperture at around 20 metres, ascending the outer reef wall back to the lagoon. Allow 45 to 60 minutes for the standard recreational circuit.

The Canyon divides Dahab's diving scene into before and after. Divers doing their Open Water course visit the coral garden. The moment they upgrade to AOW, The Canyon becomes accessible — and it is the principal reason many of them get the upgrade in Dahab rather than at home.

What the canyon offers that no wall dive does: enclosure without commitment. The overhead environment creates genuine atmospheric pressure — the compressed sky of the rock above, the bubble sounds, the glassfish choreography — but you can see daylight from inside. It is not cave diving. This matters because it places the site in range of any AOW diver with a guide, not just technical divers. The site also scales upward: the same entrance serves recreational and technical divers simultaneously, each group using a different depth band of the same geological feature.

The coral garden is worth slowing down for on the way in and out. Ghost pipefish and nudibranchs reward macro photographers on the sandy patches, and the Red Sea anemonefish (Amphiprion bicinctus) — endemic to the Red Sea — occupies anemones near the reef base.

The canyon chamber is a wide-angle location. The interior geometry, the glassfish clouds, and the angled light shafts combine into the kind of shot that circulates in travel dive photography. The standard approach is to position yourself at the chamber floor looking upward, where the ceiling cracks and the glassfish density above create the depth of field.

The best light enters the chamber in the morning. Early entry matters both for photography and for managing crowds — when multiple groups move through simultaneously, disturbed sediment and bubble columns reduce the visibility and scatter the glassfish more unpredictably. If you want clean shots inside the chamber, enter before 09:00.

The coral garden on the approach is a different discipline. Macro subjects — nudibranchs, pipefish, and the occasional short dragonfish (Eurypegasus draconis) in the shallows — require time and patience. Gear for both disciplines means two dives or a choice: take the wide-angle rig through and look hard on the sandy patches, or come back for a dedicated macro pass.

Tide timing matters at entry. The rocky platform crossing to the lagoon is significantly easier at high tide, when the lagoon itself is up to three metres deep. At low water, the crossing is shallow and awkward with equipment. Check the tide before setting out, and ask your Dahab dive centre for the best entry window.

Gulf of Aqaba water runs at around 41 parts per thousand salinity — noticeably denser than the Atlantic or Mediterranean. Carry more lead than you think you need. Most Dahab centres adjust for this and will advise on weighting if you mention you are accustomed to less salty water.

The Fishbowl chimney, the narrow vertical tube that exits at 16 to 18 metres into a coral dome, is permanently off-limits. Guides enforce the closure, signs are posted, and the dome structure is an active risk. Do not enter regardless of whether a guide from another group appears to be doing so.

A local guide is essential for a first visit. The entry point, tide timing, and navigation through the fissure to the correct exit all require familiarity with the site. For photography inside the chamber, ask your guide whether conditions support the shot you want before committing to timing.