GROS MORNE INTERIEUR - Cousteau Reserve
The Lighthouse site is a classic for good reason, though maybe not for the one you think. It's not about huge drop-offs here. We find the real magic happens on that plateau, sitting around 15 metres. Drifting across it, you’ll often spot Blue Surgeonfish grazing, their vibrant colours popping against the corals. Look closely for the smaller stuff too: we've had great luck finding Freckled Anglerfish tucked amongst the coral heads, and the intricate patterns of a Lettered Mitre shell in the sand are always a neat find. The visibility averages a decent 15 metres, often better in the morning. We love this site for its relaxed feel, but keep an eye out into the blue. It’s not uncommon to see a Scalloped Hammerhead cruise by, a real heart-stopper. We’ve also seen Eagle Rays here, sometimes in significant schools, like a silent squadron moving through the water. For divers who appreciate a slow, observational dive with the chance of a pelagic surprise, Lighthouse is a solid choice. It’s not demanding, so you can really take your time and soak it all in.
- Location
- Cousteau Reserve, Guadeloupe, Caribbean
- Coordinates
- 16.311000, -61.800800
- Type
- reef
Marine Protected Area: Gros Morne - Grande Anse
Best Time to Dive in Cousteau Reserve
The warmest water temperatures in Cousteau Reserve 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: 24.9°C)
- February: 27.5°C (air: 24.8°C)
- March: 27.5°C (air: 25.2°C)
- April: 27.5°C (air: 26.2°C)
- May: 27.5°C (air: 27.4°C)
- June: 27.5°C (air: 27.8°C)
- July: 27.5°C (air: 27.6°C)
- August: 27.5°C (air: 27.9°C)
- September: 27.5°C (air: 27.9°C)
- October: 27.5°C (air: 27.4°C)
- November: 27.5°C (air: 26.5°C)
- December: 27.5°C (air: 25.3°C)
Nearby Dive Sites in Cousteau Reserve
- Anse à La Barque - 20m
- Anse Caraïbe plongée
- Anse Christophe - 20m
- Anse des Tortues - 16m (reef)
- Anse Thomas - 17m (reef)
- Aplysina (reef)
- Aplysina (reef)
- Aquarium - 3-12m (reef)
- Balise de Petit Canal (reef)
- Balise de Petit Canal (reef)
- BERTINA - 0m (wreck)
- Bouée Anticyclonique
- Buste du Commandant Cousteau
- Crazy coral (wreck)
- Eden plongée
Nearest Dive Centres to GROS MORNE INTERIEUR
Marine Life in Cousteau Reserve
Home to 345 recorded species including 259 reef fish, 27 hard corals, 16 whales & dolphins, 12 other, 6 seagrass & algae, 5 sea urchins.
Notable Species
- Sperm Whale (Physeter macrocephalus) - Whales & Dolphins
- Spiny Brittle Star (Ophiocoma echinata)
- Angular Brittle Star (Ophiothrix (Ophiothrix) angulata)
- Bridled Dolphin (Stenella attenuata) - Whales & Dolphins
- Cowfish (Tursiops truncatus) - Whales & Dolphins
- Harlequin Brittle Star (Ophioderma appressum)
- Savigny's Brittle Star (Ophiactis savignyi)
- Swordfish (Xiphias gladius) - Reef Fish
- Rusty Goby (Priolepis hipoliti) - Reef Fish
- Agassiz's Thread-sail Fish (Chlorophthalmus agassizi) - Reef Fish
- Parrotfish (Thalassoma bifasciatum) - Reef Fish
- Orca (Orcinus orca) - Whales & Dolphins
- Serpent Brittle Star (Ophioderma brevispinum)
- Common comet star (Linckia guildingi) - Starfish
- Flamefish (Apogon maculatus) - Reef Fish
- Smallmouth goby (Risor ruber) - Reef Fish
- Dorado (Coryphaena hippurus) - Reef Fish
- Ruby Brittle Star (Ophioderma rubicundum)
- False killer whale (Pseudorca crassidens) - Whales & Dolphins
- Goldspot Goby (Gnatholepis thompsoni) - Reef Fish
Recommended Packing List for GROS MORNE INTERIEUR
Based on average water temperature of 27.5°C.
- Shorty or Rashguard - warm 28°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