Cobalt Ridge - Grand Cayman
The Southwest Coast of Grenada is a wreck diver’s playground, and while there are plenty of options, we think the *Bianca C* tends to steal the limelight from some real crackers. For a different vibe, dive into a few of the lesser-known sites, especially the one simply known as "Grenada". It’s a shipwreck, maxing out at 19 metres, making it super accessible for most divers. We love this spot for its quiet charm. You can easily spend an hour exploring the broken superstructure, which has been beautifully colonised by sponges and soft corals. Keep an eye out for the resident barracuda patrolling the mast, and those Sharpnose Pufferfish peeking from every nook. On our last trip, we spotted several Spotted Trunkfish, just hovering in the gentle current, and the Blue Parrotfish were everywhere. Visibility averages around 16 metres, which is decent enough for some great photo opportunities. It's a relaxed dive, perfect for photographers or anyone who enjoys a leisurely poke around a historical wreck without strong currents.
- Location
- Grand Cayman, Cayman Islands, Caribbean
- Coordinates
- 19.374500, -81.420600
- Type
- wreck
- Maximum Depth
- 10-30m
Marine Protected Area: North West Point - West Bay Cemetery (Grand Cayman)
Best Time to Dive in Grand Cayman
The warmest water temperatures in Grand Cayman occur in September, averaging 30.4°C. The coolest conditions are in February at 26.9°C.
Monthly Water Temperatures
- January: 27.3°C
- February: 26.9°C
- March: 27.0°C
- April: 27.7°C
- May: 28.7°C
- June: 29.2°C
- July: 29.8°C
- August: 30.3°C
- September: 30.4°C
- October: 30.0°C
- November: 29.0°C
- December: 28.0°C
Nearby Dive Sites in Grand Cayman
- Anchor Point (cenote)
- Anchor Point (wall)
- Angelfish Reef - Grand Cayman (reef)
- Angelfish Reef - Grand Cayman (reef)
- Aquarium - Grand Cayman (reef)
- Aquarium - Grand Cayman (wall)
- Armchair Reef (reef)
- Armchair Reef (reef)
- Babylon, Cayman (reef)
- Babylon, Cayman (reef)
- Balboa (Wreck) (wreck)
- Balboa (Wreck) (reef)
- Bear’s Paw (reef)
- Bear’s Paw (wall)
- Big Dipper (reef)
Nearest Dive Centres to Cobalt Ridge
- Atlantis Dive Center
- Divers Down - PADI
- Divers Supply
- Divetech - PADI
- Diving Center - SSI, PADI, CMAS, NAUI, FEDAS, ACUC
- Don Foster's Dive Cayman, Ltd. - ["PADI"]
Marine Life in Grand Cayman
Home to 332 recorded species including 276 reef fish, 30 hard corals, 5 other, 5 seagrass & algae, 4 whales & dolphins, 4 sharks & rays.
Notable Species
- Elkhorn coral (Acropora palmata) - Hard Corals
- Massive Starlet Coral (Siderastrea siderea) - Hard Corals
- Mustard hill coral (Porites astreoides) - Hard Corals
- Gutong (Scarus iseri) - Reef Fish
- Dark Green Parrotfish (Sparisoma viride) - Reef Fish
- Blue Doctor (Acanthurus coeruleus) - Reef Fish
- Gutong (Sparisoma aurofrenatum) - Reef Fish
- French grunt (Haemulon flavolineatum) - Reef Fish
- Great star coral (Montastraea cavernosa) - Hard Corals
- Barber (Acanthurus bahianus) - Reef Fish
- Finger Coral (Porites porites) - Hard Corals
- Butterfly (Chaetodon capistratus) - Reef Fish
- Schoolmaster (Lutjanus apodus) - Reef Fish
- Grunt (Haemulon plumierii) - Reef Fish
- Lettuce Coral (Agaricia agaricites) - Hard Corals
- Bluestriped Grunt (Haemulon sciurus) - Reef Fish
- Sheephead (Microspathodon chrysurus) - Reef Fish
- Sammy Johnson (Scarus taeniopterus) - Reef Fish
- Cola (Ocyurus chrysurus) - Reef Fish
- Graysby (Cephalopholis cruentata) - Reef Fish
Recommended Packing List for Cobalt Ridge
Based on average water temperature of 28.7°C, currents 9 cm/s.
- Shorty or Rashguard - warm 29°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