Mary’s Wall - Poor Knights Islands
Photographer’s Reef truly earns its name. We love this site for its tight, intricate granite formations, creating endless opportunities to frame a shot. The reef top starts around 3m, dropping to a sandy bottom at 16m, and the whole place is a maze of high-profile boulders and outcrops. You’ll find deep overhangs and some lovely little swim-throughs here, perfect for exploring. The walls are plastered with strawberry anemones, their vibrant reds and oranges just popping in the South African light. Keep an eye out for nudibranchs tucked into every crevice; we’ve spotted some real beauties here. The deeper gullies are a good bet for shy sharks and the usual reef fish. Visibility averages 7m, which is standard for the area, and it really suits divers who enjoy a slower pace, poking around and observing the smaller details. If you're carrying a camera, this is absolutely one of our favourite spots for interesting compositions and macro life.
- Location
- Poor Knights Islands, New Zealand, Australasia
- Coordinates
- -35.477600, 174.736600
- Type
- reef
Marine Protected Area: Poor Knights Islands
Best Time to Dive in Poor Knights Islands
The warmest water temperatures in Poor Knights Islands occur in February, averaging 21.9°C. The coolest conditions are in August at 15.8°C.
Monthly Water Temperatures
- January: 21.4°C
- February: 21.9°C
- March: 21.7°C
- April: 20.6°C
- May: 19.1°C
- June: 17.6°C
- July: 16.5°C
- August: 15.8°C
- September: 15.9°C
- October: 16.6°C
- November: 18.2°C
- December: 19.8°C
Nearby Dive Sites in Poor Knights Islands
- ABC Bay (wall)
- ABC Bay (reef)
- Alice A. Leigh /Rewa ShipWreck (wreck)
- Alice A. Leigh /Rewa ShipWreck (cenote)
- Ann's Rock / Astrid's Wall (wall)
- Barren Arch (reef)
- Bartle Bay (drift)
- Bartle Bay (wreck)
- Blue MaoMao Arch (cave)
- Blue MaoMao Arch (drift)
- Boarfish Reef Poor Knights (reef)
- Boarfish Reef Poor Knights (reef)
- Brady’s Corner (Shark Fin Cave) (cave)
- Brady’s Corner (Shark Fin Cave) - 10-25m (cave)
- Bream Rock
Nearest Dive Centres to Mary’s Wall
- Auckland Scuba - Silverdale - ["PADI"]
- DIVE NOW - SSI
- Dive! Tutukaka - ["PADI"]
- Dive Zone
- GOAT ISLAND DIVE and SNORKEL - SSI
- Moana Futures Ltd
Marine Life in Poor Knights Islands
Home to 84 recorded species including 53 reef fish, 11 sharks & rays, 4 whales & dolphins, 4 other, 3 crabs & lobsters, 2 sea urchins.
Notable Species
- Snapper (Pagrus auratus) - Reef Fish
- Short-beaked Common Dolphin (Delphinus delphis) - Whales & Dolphins
- Red Rock Lobster (Jasus edwardsii) - Crabs & Lobsters
- Striped Marlin (Kajikia audax) - Reef Fish
- California Yellowtail (Seriola lalandi) - Reef Fish
- European fan-worm (Sabella spallanzanii) - Worms
- Shortfin mako (Isurus oxyrinchus) - Sharks & Rays
- Smooth hammerhead (Sphyrna zygaena) - Sharks & Rays
- Bluefin Gurnard (Chelidonichthys kumu) - Reef Fish
- Asian paddle crab (Charybdis (Charybdis) japonica) - Crabs & Lobsters
- Bronze whaler (Carcharhinus brachyurus) - Sharks & Rays
- dory (Zeus faber) - Reef Fish
- Cowfish (Tursiops truncatus) - Whales & Dolphins
- Blue mackerel (Scomber australasicus) - Reef Fish
- Striped Triplefin (Forsterygion varium) - Reef Fish
- Blue-eyed Triplefin (Notoclinops segmentatus) - Reef Fish
- Spotty (Notolabrus celidotus) - Reef Fish
- Southern Eagle Ray (Myliobatis tenuicaudatus) - Sharks & Rays
- Ranger (Pseudocaranx dentex) - Reef Fish
- Bryde's whale (Balaenoptera brydei) - Whales & Dolphins
Recommended Packing List for Mary’s Wall
Based on average water temperature of 18.8°C, currents 12 cm/s.
- Wetsuit (3-5mm) - comfortable for 19°C water
- 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