Deep Sponge - 2 Mile Reef - Sodwana Bay

Humbug Bay. We love this spot, especially when the main Goat Island crowds are doing their thing elsewhere. It’s got a bit of everything, which makes it one of our favourite all-rounders. Drop in around the boulder fields, near those rocky outcrops, and you're quickly among schools of snapper and demoiselles darting through the kelp. The real draw for us, though, are the caves towards Devil’s Point. They’re not deep, maybe just a few metres in, but they're big enough to poke your head into and see what’s lurking in the shadows – often a rig or a sleepy stingray. Further east, you’ll find a tiered reef, dropping in three distinct steps down to 14 metres. Visibility averages seven metres, so it’s not always a wide-angle dream, but it's usually good enough to appreciate the intricate rock formations and the smaller critters like mottled triplefins and blennies tucked into crevices. The bottom here has a light dusting of silt, so good buoyancy helps keep things clear. It’s a site that rewards slow exploration rather than grand vistas, perfect for a relaxed dive spotting the local residents.

Location: Sodwana Bay, South Africa, Indian Ocean & East Africa
Coordinates: -27.519600, 32.694000
Type: cave
Difficulty: advanced

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

Nearest Dive Centres to Deep Sponge - 2 Mile Reef

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 Deep Sponge - 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