Trenches - 2 Mile Reef - Sodwana Bay
Alcyone is one of those places where you really feel the wild heart of Cocos. It's an underwater seamount, a real magnet for big pelagics, especially those schooling hammerheads. We've dropped in here on the line more times than we can count, often in a ripping current, but the pay-off is usually worth the effort. Expect to hang out at around 25-30 meters, watching walls of scalloped hammerheads drift past, sometimes 150-200 strong. Besides the sharks, we frequently spot marble rays cruising by and the occasional bottlenose dolphin making an appearance. It's a dive for experienced folks, no question, given the strong currents and required depth.
- Location
- Sodwana Bay, South Africa, Indian Ocean & East Africa
- Coordinates
- -27.526000, 32.689800
- Type
- drift
Marine Protected Area: iSimangaliso Marine Protected Area
Best Time to Dive in Sodwana Bay
The warmest water temperatures in Sodwana Bay occur in January, averaging 28.1°C. The coolest conditions are in December at 28.1°C.
Monthly Water Temperatures
- January: 28.1°C (air: 25.1°C)
- February: 28.1°C (air: 25.2°C)
- March: 28.1°C (air: 24.5°C)
- April: 28.1°C (air: 22.7°C)
- May: 28.1°C (air: 21.1°C)
- June: 28.1°C (air: 19.1°C)
- July: 28.1°C (air: 18.8°C)
- August: 28.1°C (air: 19.5°C)
- September: 28.1°C (air: 20.6°C)
- October: 28.1°C (air: 21.6°C)
- November: 28.1°C (air: 23.3°C)
- December: 28.1°C (air: 24.6°C)
Nearby Dive Sites in Sodwana Bay
- 2 Mile Reef - 5-20m (reef)
- 2 Mile Reef Pinnacles (reef)
- 2 Mile Reef Pinnacles (pinnacle)
- 2 Mile Stringer (reef)
- 2 Mile Stringer (wreck)
- 300 - 48m (wreck)
- 3 Mile Reef Hotspots (reef)
- 3 Mile Reef Hotspots (wreck)
- 7 Mile Reef (reef)
- 7 Miles Reef (reef)
- 7 Miles Reef (reef)
- 9 Mile Coral Tree (reef)
- 9 Mile Coral Tree (reef)
- 9 Mile Reef (reef)
- Adventure Reef - 2 Mile Reef (reef)
Nearest Dive Centres to Trenches - 2 Mile Reef
- Coral Divers - ["PADI"]
- Gozo Azul Diving - ["PADI"]
- Malongane Beach Resort - ["PADI"]
- Maputo Dive Center - ["PADI"]
- Mermaids Cove Ei
- Occi Scuba - ["PADI"]
Marine Life in Sodwana Bay
Home to 579 recorded species including 443 reef fish, 49 sharks & rays, 35 hard corals, 12 seagrass & algae, 8 crabs & lobsters, 7 whales & dolphins.
Notable Species
- Bull Shark (Carcharhinus leucas) - Sharks & Rays
- Soldier (Cheimerius nufar) - Reef Fish
- Tiger Shark (Galeocerdo cuvier) - Sharks & Rays
- Narrow-barred Spanish mackerel (Scomberomorus commerson) - Reef Fish
- Leatherback Sea Turtle (Dermochelys coriacea)
- Mozambique mouth-breeder (Oreochromis mossambicus) - Reef Fish
- Silver moony (Monodactylus argenteus) - Reef Fish
- Manini (Acanthurus triostegus) - Reef Fish
- African Weakfish (Atractoscion aequidens) - Reef Fish
- Dorado (Coryphaena hippurus) - Reef Fish
- Hound Needlefish (Tylosurus crocodilus) - Reef Fish
- Jack (Selar crumenophthalmus) - Reef Fish
- Spangled emperor (Lethrinus nebulosus) - Reef Fish
- honeycomb stingray (Himantura uarnak) - Sharks & Rays
- loggerhead turtle (Caretta caretta)
- Crescent Grunter (Terapon jarbua) - Reef Fish
- Blackspot Surgeonfish (Acanthurus nigrofuscus) - Reef Fish
- Dusky grouper (Epinephelus marginatus) - Reef Fish
- Coral Blenny (Istiblennius edentulus) - Reef Fish
- Bluefish (Kyphosus vaigiensis) - Reef Fish
Recommended Packing List for Trenches - 2 Mile Reef
Based on average water temperature of 28.1°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