Double Wall - Cayman Brac
Jackfish Alley. The name itself hints at what we love most about this spot near Mnemba Atoll. It’s got that dramatic wall that just keeps going, though we typically stick to the upper 22 metres. What makes it a standout for us isn't just the sheer number of jackfish, though they do school thick here. It's the cavern. You drop down to about 18 metres, then duck into this fantastic overhang, and suddenly you're surrounded. We've seen honeycomb groupers peering out, bigspot rockcod tucked into crevices, and more cowries than you can count – keep an eye out for the carnelian and eroded varieties. The light plays beautifully in there, reflecting off the walls. Snappers, every shade of yellow and blue, mill about, and sometimes you'll spot a green turtle cruising past the entrance. It's not a deep dive, but it feels adventurous. Best tackled on a calm morning, just after sunrise if you can swing it, before the day boats crowd it. We think it’s perfect for divers who appreciate a bit of overhead environment and a dense concentration of reef life without the need for extreme depths. Just remember to look up for those jacks!
- Location
- Cayman Brac, Cayman Islands, Caribbean
- Coordinates
- 19.691000, -79.895500
- Type
- cave
Marine Protected Area: Cayman Brac East
Best Time to Dive in Cayman Brac
The warmest water temperatures in Cayman Brac occur in September, averaging 30.5°C. The coolest conditions are in February at 27.1°C.
Monthly Water Temperatures
- January: 27.4°C
- February: 27.1°C
- March: 27.2°C
- April: 27.9°C
- May: 28.8°C
- June: 29.3°C
- July: 30.0°C
- August: 30.4°C
- September: 30.5°C
- October: 30.1°C
- November: 29.0°C
- December: 28.0°C
Nearby Dive Sites in Cayman Brac
- Bloody Bay Wall (reef)
- Bloody Bay Wall (wall)
- Buccaneer Reef (reef)
- Buccaneer Reef (reef)
- Capt. K. Tibbets
- Cayman Brac (reef)
- Cemetery Reef (reef)
- Coral Anchors (reef)
- East Chute (drift)
- Fisheries
- Jackson Wall and Reef - Grand Cayman (reef)
- Kissimmee
- Lighthouse Reef - Cayman Brac (reef)
- LILLY PALMAR (POSSIBLY) - 1m (wreck)
- Little Cayman (reef)
Nearest Dive Centres to Double Wall
- Little Cayman Divers - PADI, NAUI, SSI, SDI, IDEA
- Reef Divers - PADI
- Reef Divers II - Cayman Brac
- Scuba Shack
Marine Life in Cayman Brac
Home to 141 recorded species including 111 reef fish, 23 hard corals, 2 whales & dolphins, 2 other, 1 sea snails & nudibranchs, 1 seagrass & algae.
Notable Species
- Mustard hill coral (Porites astreoides) - Hard Corals
- Finger Coral (Porites porites) - Hard Corals
- Blue Doctor (Acanthurus coeruleus) - Reef Fish
- Gutong (Sparisoma aurofrenatum) - Reef Fish
- Massive Starlet Coral (Siderastrea siderea) - Hard Corals
- Dark Green Parrotfish (Sparisoma viride) - Reef Fish
- Great star coral (Montastraea cavernosa) - Hard Corals
- Barber (Acanthurus bahianus) - Reef Fish
- Sammy Johnson (Scarus taeniopterus) - Reef Fish
- Gutong (Scarus iseri) - Reef Fish
- French grunt (Haemulon flavolineatum) - Reef Fish
- Graysby (Cephalopholis cruentata) - Reef Fish
- Blackfish (Melichthys niger) - Reef Fish
- Grooved brain coral (Diploria labyrinthiformis) - Hard Corals
- Sheephead (Microspathodon chrysurus) - Reef Fish
- Butterfly (Chaetodon capistratus) - Reef Fish
- Schoolmaster (Lutjanus apodus) - Reef Fish
- Yellowtail Parrotfish (Sparisoma rubripinne) - Reef Fish
- Doctorfish (Acanthurus chirurgus) - Reef Fish
- Blue Parrotfish (Sparisoma chrysopterum) - Reef Fish
Recommended Packing List for Double Wall
Based on average water temperature of 28.8°C, currents 6 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