Flat Rock - Goat Island & Hauraki Gulf
Kona diving is all about those volcanic surprises and the critters that have made them home. We particularly love exploring the lava tubes and grottos here; they’re a cool contrast to the open reef, offering up a bit of an architectural feel to the dive. Inside, look for the blackside hawkfish perched on ledges and the blotcheye soldierfish tucked away. The shallower max depth of 18m means plenty of bottom time, which we appreciate for really soaking in the details. You’ll find schools of sleek unicornfish zipping by, and if you’re lucky, a whale shark might cruise through, a real contrast to the smaller inhabitants like the regal parrotfish munching on coral. We’d suggest keeping an eye out for nudibranchs on the rock walls, too. Kona is a great choice for divers who enjoy a mix of unique topography and a comfortable pace.
- Location
- Goat Island & Hauraki Gulf, New Zealand, Australasia
- Coordinates
- -36.445700, 174.924900
- Type
- cave
Marine Protected Area: Moturekareka Is
Best Time to Dive in Goat Island & Hauraki Gulf
The warmest water temperatures in Goat Island & Hauraki Gulf occur in February, averaging 22.4°C. The coolest conditions are in August at 14.1°C.
Monthly Water Temperatures
- January: 21.4°C
- February: 22.4°C
- March: 21.8°C
- April: 19.8°C
- May: 17.4°C
- June: 15.3°C
- July: 14.1°C
- August: 14.1°C
- September: 14.7°C
- October: 16.3°C
- November: 18.5°C
- December: 20.3°C
Nearby Dive Sites in Goat Island & Hauraki Gulf
- 4 mile reef (reef)
- 4 mile reef (reef)
- Acacia Bay (reef)
- Acacia Bay (reef)
- Aldermens- Bishops Hat (cave)
- Aldermens- Bishops Hat (reef)
- Aldermens- Fish Factory (wall)
- Aldermens- Fish Factory (pinnacle)
- Aldermens- HoneyComb (cave)
- Aldermens- HoneyComb (reef)
- Aldermens-Middle Middle (reef)
- Aldermens-Middle Middle (wreck)
- Aldermens- Mooring Bay (wall)
- Aldermens- Mooring Bay (reef)
- Anemone Boulders (reef)
Nearest Dive Centres to Flat Rock
- Cathedral Cove Dive Ltd - ["PADI"]
- Dive Doctor
- Dive HQ Auckland - ["PADI"]
- Dive Tatapouri
- Dive Zone Tauranga - ["PADI"]
- Dive Zone Whitianga - ["PADI"]
Marine Life in Goat Island & Hauraki Gulf
Home to 77 recorded species including 43 reef fish, 11 sharks & rays, 3 whales & dolphins, 3 crabs & lobsters, 3 other, 3 sea snails & nudibranchs.
Notable Species
- Snapper (Pagrus auratus) - Reef Fish
- Short-beaked Common Dolphin (Delphinus delphis) - Whales & Dolphins
- European fan-worm (Sabella spallanzanii) - Worms
- Asian paddle crab (Charybdis (Charybdis) japonica) - Crabs & Lobsters
- Red Rock Lobster (Jasus edwardsii) - Crabs & Lobsters
- Smooth hammerhead (Sphyrna zygaena) - Sharks & Rays
- Bluefin Gurnard (Chelidonichthys kumu) - Reef Fish
- Bronze whaler (Carcharhinus brachyurus) - Sharks & Rays
- dory (Zeus faber) - Reef Fish
- California Yellowtail (Seriola lalandi) - Reef Fish
- Blue mackerel (Scomber australasicus) - Reef Fish
- Cowfish (Tursiops truncatus) - Whales & Dolphins
- Ranger (Pseudocaranx dentex) - Reef Fish
- Pacific sardine (Sardinops sagax) - Reef Fish
- Rig (Mustelus lenticulatus) - Sharks & Rays
- Dab (Rhombosolea plebeia) - Reef Fish
- Spotted Stargazer (Genyagnus monopterygius) - Reef Fish
- Carpet sea squirt (Didemnum vexillum)
- Southern Eagle Ray (Myliobatis tenuicaudatus) - Sharks & Rays
- Bryde's whale (Balaenoptera brydei) - Whales & Dolphins
Recommended Packing List for Flat Rock
Based on average water temperature of 18.0°C, currents 2 cm/s.
- Wetsuit (3-5mm) - comfortable for 18°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