Grand Récif - Gulf of Tadjoura

Alholm Rev, for us, is a real surprise package in the often-overlooked Danish North Sea. Forget your tropical blues; here it’s about a different kind of beauty, a rugged, resilient ecosystem thriving in cooler water. We love the sheer density of life clinging to every surface of the reef, like the Hairy Sea-mats creating intricate tapestries, often completely covering the rocks. You'll find yourself searching for the subtle movements of specked sea-louse or admiring the robust architecture of acorn barnacles. It’s an excellent spot for macro enthusiasts, or anyone who appreciates the smaller details. Keep an eye out for the bull rout, often tucked into crevices, and the energetic common shore crabs scuttling about. Conditions can be challenging, so pick your day carefully; calmer seas make all the difference for enjoying the intricate bottom. We’d suggest going at slack tide if you can time it right. You might even catch a glimpse of a harbour porpoise patrolling the deeper sections, a truly special bonus. It’s a site that rewards patience and a keen eye, perfect for divers who prefer quiet observation over big pelagics.

Location: Gulf of Tadjoura, Djibouti, Red Sea & Middle East
Coordinates: 11.736944, 43.238888
Type: reef

Marine Protected Area: Iles Musha et Maskhali

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

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 Grand Récif

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