An Dlo - Diamond Rock

An Dlo, on the lee side of Diamond Rock, is one of those places that genuinely surprises you. Most divers come for the rock itself, with its swim-throughs and tunnels, but we think An Dlo offers a different kind of magic. It’s a rocky slope, not a typical reef, and that’s precisely what makes it intriguing. Instead of hard corals, you’re looking at dramatic rock formations draped in black coral whips that sway hypnotically in the surge. The big draw here, for us, is the pelagic potential. We’ve seen Atlantic bumpers schooling in tight formations, their silvery sides flashing. If you keep an eye on the blue, you might catch a glimpse of horse-eye jacks cruising past, or even a fleeting shadow of a shortfin mako. It’s not a guarantee, of course, but the possibility adds a layer of excitement. We also love spotting the more unusual residents like cowfish poking around the rocks. Visibility can vary, but when it’s good, the light plays beautifully through the water column, illuminating the dark rock faces. It’s a relatively easy dive, generally, but pay attention to the surge, especially closer to the rock – it can be quite playful. We’d suggest this site for divers who appreciate dramatic topography and a chance at seeing some larger, open-water species rather than intricate macro life. It’s a site that rewards patience and a keen eye for the unexpected.

Location: Diamond Rock, Martinique, Caribbean
Coordinates: 14.473877, -61.008003
Type: reef
Maximum Depth: 10-30m

Marine Protected Area: Rocher Du Diamant

Best Time to Dive in Diamond Rock

The warmest water temperatures in Diamond Rock occur in January, averaging 27.5°C. The coolest conditions are in December at 27.5°C.

Monthly Water Temperatures

January: 27.5°C (air: 25.8°C)
February: 27.5°C (air: 25.8°C)
March: 27.5°C (air: 26.2°C)
April: 27.5°C (air: 27.0°C)
May: 27.5°C (air: 27.9°C)
June: 27.5°C (air: 27.9°C)
July: 27.5°C (air: 27.6°C)
August: 27.5°C (air: 27.9°C)
September: 27.5°C (air: 28.1°C)
October: 27.5°C (air: 27.8°C)
November: 27.5°C (air: 27.0°C)
December: 27.5°C (air: 26.3°C)

Nearest Dive Centres to An Dlo

CANOPEE BLEUE
Deep Turtle
Espace Plongee Martinique - ["PADI"]
NATIYABEL - SSI, PADI, CMAS, FFESSM, ANMP
O FIL DE L’EAU - FFESSM, CMAS
PLONGEE IMMERSION CARAIBES

Marine Life in Diamond Rock

Home to 369 recorded species including 327 reef fish, 15 whales & dolphins, 8 sharks & rays, 3 seagrass & algae, 3 sea snails & nudibranchs, 3 other.

Notable Species

Barber (Acanthurus bahianus) - Reef Fish
Greater Soapfish (Rypticus saponaceus) - Reef Fish
Sperm Whale (Physeter macrocephalus) - Whales & Dolphins
Lawyer (Halichoeres radiatus) - Reef Fish
Pacific Spotted Scorpionfish (Scorpaena plumieri) - Reef Fish
Flamefish (Apogon maculatus) - Reef Fish
Bastard soldierfish (Myripristis jacobus) - Reef Fish
Clown Wrasse (Halichoeres maculipinna) - Reef Fish
Devilfish (Ophioblennius atlanticus) - Reef Fish
Cook (Holocentrus adscensionis) - Reef Fish
Jack (Epinephelus adscensionis) - Reef Fish
Hamlet (Gymnothorax moringa) - Reef Fish
Coney (Cephalopholis fulva) - Reef Fish
Porcupine (Diodon holocanthus) - Reef Fish
Blackfish (Globicephala macrorhynchus) - Whales & Dolphins
Spotted Soapfish (Rypticus subbifrenatus) - Reef Fish
Yellowtail Parrotfish (Sparisoma rubripinne) - Reef Fish
Cluck (Pareques acuminatus) - Reef Fish
Spotted Goatfish (Pseudupeneus maculatus) - Reef Fish
French grunt (Haemulon flavolineatum) - Reef Fish

Recommended Packing List for An Dlo

Based on average water temperature of 27.5°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