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Hotels, dive operators, gear, and how to get here are on the Ras Mohammed location page.
Overview
An open chimney that drops through the fringing reef 250 m north of the Blue Hole, named for the chime steel tanks make against the limestone walls as divers thread the shaft one at a time. Entry is a small fissure in the reef plate; the chimney narrows and widens before opening onto a sheer wall at about 28 m, thick with red whip corals, gorgonians and clouds of lyretail anthias. From the exit most divers cruise south along the outer reef and recross the Saddle at 7 m to drop into the Blue Hole for the swim back to shore. Schooling yellowfin tuna and the occasional bigeye trevally pass in the blue off the wall; close in, glassfish swarm the cracks and bluespotted ribbontail rays rest on rubble shelves.
Briefing note
Dived one diver at a time through the chimney to avoid silt outs and tank clatter against the walls. Standard profile is a one way drift south from the Bells exit, across the Saddle at 7 m, and into the Blue Hole for the swim back to shore. No boat access; entry is from the Bedouin parking shelves and exit is up the Blue Hole steps. Small site fee at the camps covers parking and the rest area.
What you'll see
7 species curated- year-roundLyretail anthias
- year-roundGlassfish
- year-roundBluespotted ribbontail ray
- year-roundBigeye trevally
- seasonalYellowfin tunaPeak: Apr · May · Jun · Sep · Oct · Nov
- rareHawksbill turtle
- rareNapoleon wrasse
Conditions
| Month | Water | Visibility | Current |
|---|---|---|---|
| Jan | 21–23 °C | 25–40 m | mild |
| Feb | 21–22 °C | 25–40 m | mild |
| Mar | 21–23 °C | 25–40 m | mild |
| Apr | 22–24 °C | 25–40 m | mild |
| May | 24–26 °C | 25–35 m | mild |
| Jun | 26–28 °C | 20–30 m | mild |
| Jul | 27–29 °C | 20–30 m | mild |
| Aug | 28–29 °C | 20–30 m | mild |
| Sep | 27–29 °C | 25–35 m | mild |
| Oct | 26–28 °C | 25–40 m | mild |
| Nov | 24–26 °C | 25–40 m | mild |
| Dec | 22–24 °C | 25–40 m | mild |
Season calendar
Peak season highlighted · current month outlined
Gear for this site
Beyond the basic kit- SMB — The profile ends on the open wall before the Saddle and boat traffic crosses the Blue Hole channel; mark your ascent before you come up.
- Torch — Light reveals the soft coral colour inside the chimney and shows up lionfish and morays tucked into the wall cracks.
- Dive computer with depth alarm — The wall outside the chimney exit drops well past 100 m; an alarm keeps you on the planned 28 m exit ledge instead of the deep slope.
Next step
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