Siyyân H̱imâr - Gulf of Tadjoura
St. Crispin’s reef feels like the GBR showing off. It’s a long, outer-shelf reef, so you get that lovely blue water visibility on good days. We’ve found the eastern side offers the best conditions for a drift, especially when the current picks up a bit. We love how the reef structure itself feels ancient, full of massive brain corals and those intricate staghorn formations, providing plenty of nooks and crannies. What really grabs your attention here are the anemones. They’re everywhere, big fields of them, each hosting Clark’s anemonefish darting in and out. It’s hard to swim past them without stopping for a good five minutes. Look out for the triangular butterflyfish picking their way across the corals, and if you’re lucky, you’ll spot a few argus grouper lurking under ledges. We’d suggest keeping an eye on the surface, too; masked boobies and white-bellied sea eagles often patrol overhead. It’s a dive that rewards slow exploration rather than rushing through.
- Location
- Gulf of Tadjoura, Djibouti, Red Sea & Middle East
- Coordinates
- 12.518300, 43.298600
- Type
- reef
Marine Protected Area: Iles des Sept Freres ainsi que Ras Syan, Khor Angar et la foret de Godoria
Best Time to Dive in Gulf of Tadjoura
The warmest water temperatures in Gulf of Tadjoura occur in January, averaging 26.9°C. The coolest conditions are in December at 26.9°C.
Monthly Water Temperatures
- January: 26.9°C (air: 24.8°C)
- February: 26.9°C (air: 25.3°C)
- March: 26.9°C (air: 26.9°C)
- April: 26.9°C (air: 28.9°C)
- May: 26.9°C (air: 32.5°C)
- June: 26.9°C (air: 35.7°C)
- July: 26.9°C (air: 36.4°C)
- August: 26.9°C (air: 34.9°C)
- September: 26.9°C (air: 34.5°C)
- October: 26.9°C (air: 30.2°C)
- November: 26.9°C (air: 27.2°C)
- December: 26.9°C (air: 25.5°C)
Nearby Dive Sites in Gulf of Tadjoura
- AL SAID - 29m (wreck)
- ARCHON RAPHAEL - 18m (wreck)
- Arta Beach - 5-20m
- Banc de La Clocheterie (reef)
- Banc de la Pointe Noire (reef)
- Banc des Salines (reef)
- Banc du Héron (reef)
- Banc du Pingouin (reef)
- Banc Gutta Tella (reef)
- Banc Moidubis Kebir (reef)
- Banc Moidubis Seghir (reef)
- Banc Ousal (reef)
- FONTAINEBLEU - 0m (wreck)
- GHINDA (POSSIBLY) - 0m (wreck)
- Ghoubet al-Kharab
Marine Life in Gulf of Tadjoura
Home to 205 recorded species including 95 hard corals, 75 reef fish, 8 sharks & rays, 6 crabs & lobsters, 5 sea cucumbers, 4 sea snails & nudibranchs.
Notable Species
- Angelfish (Pygoplites diacanthus) - Reef Fish
- Whale Shark (Rhincodon typus) - Sharks & Rays
- Blacktip shark (Carcharhinus limbatus) - Sharks & Rays
- Halfspotted Hind (Cephalopholis hemistiktos) - Reef Fish
- Longfin Bannerfish (Heniochus acuminatus) - Reef Fish
- Blacktip reef shark (Carcharhinus melanopterus) - Sharks & Rays
- Wrasse (Thalassoma lunare) - Reef Fish
- Sailfish (Istiophorus platypterus) - Reef Fish
- Bottleneck Sea Cucumber (Holothuria (Thymiosycia) impatiens) - Sea Cucumbers
- Ehrenberg's snapper (Lutjanus ehrenbergii) - Reef Fish
- Sea Scorpion (Scorpaena porcus) - Reef Fish
- Sand-dusted Cone (Conus arenatus) - Sea Snails & Nudibranchs
- Green Turtle (Chelonia mydas)
- Brown-spotted Grouper (Epinephelus chlorostigma) - Reef Fish
- Staghorn coral (Acropora donei) - Hard Corals
- Blue-dashed Rockskipper (Blenniella periophthalmus) - Reef Fish
- Edgeblack Grouper (Epinephelus summana) - Reef Fish
- Black triggerfish (Odonus niger) - Reef Fish
- Small-eyed Squirrelfish (Myripristis murdjan) - Reef Fish
- Coral hind (Cephalopholis miniata) - Reef Fish
Recommended Packing List for Siyyân H̱imâr
Based on average water temperature of 26.9°C.
- Shorty or Rashguard - warm 27°C water needs minimal exposure protection
- Mask - essential for every dive
- Fins
- BCD - buoyancy compensator
- Regulator - your most safety-critical piece of gear
- Dive Computer - tracks depth, time, and NDL
- Surface Marker Buoy (SMB) - essential for boat pickups
- Dive Torch - useful for crevices and colour at depth
- Underwater Camera - capture your diving memories