OHINAU ISLAND - Goat Island & Hauraki Gulf

Robs Bottom is a decent deep-water ridge south of Tofo Beach. We’ve seen it peak around 23 meters, dropping to 28 at its edges, and it’s one of those sites that keeps you guessing. The draw here is often the bigger stuff, with oceanic manta rays making regular appearances, sometimes alongside the elusive small-eye stingray if you’re particularly lucky. Look out for honeycomb morays peering from crevices and loggerhead turtles gliding by. Visibility averages 12 meters, so it’s more about the encounters than the wide-angle reef shots.

Location
Goat Island & Hauraki Gulf, New Zealand, Australasia
Coordinates
-36.726400, 175.878800
Type
reef

Marine Protected Area: Rabbit Island

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

Nearest Dive Centres to OHINAU ISLAND

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

Recommended Packing List for OHINAU ISLAND

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

Frequently Asked Questions

What is the typical depth range for diving at Ohinau Island?
The maximum depth for diving at Ohinau Island is 12 meters. While a specific typical depth range isn't provided, divers can plan their dives to explore up to this limit. This depth profile makes it accessible for many divers.
What kind of marine life and underwater topography can divers expect to see at Ohinau Island?
At Ohinau Island, divers will encounter a captivating reef topography. The waters around the island are teeming with an abundance of fish life, promising a vibrant underwater experience. You can learn more about marine species in our wildlife database.
Is Ohinau Island suitable for beginner divers, or is it considered an advanced dive site?
Ohinau Island is classified as an intermediate dive site. While it may not be ideal for absolute beginners due to potential currents, its maximum depth of 12 meters makes it suitable for certified divers with some experience. Divers should be prepared for varying conditions.
When is the best time of year to dive Ohinau Island for optimal conditions and marine life?
The provided data does not specify the best time of year to dive Ohinau Island for optimal conditions or marine life. For general guidance on seasonal diving in New Zealand, please refer to our When to Dive section. We recommend checking with local dive centers for current conditions.
What diving certifications are recommended or required to dive at Ohinau Island?
As an intermediate dive site with a maximum depth of 12 meters, an Open Water Diver certification is generally recommended for diving at Ohinau Island. Divers should possess sufficient experience and comfort in varied conditions, particularly given the potential for currents. Always consult with local dive centers for their specific requirements.
What are the typical current conditions and potential hazards divers should be aware of at Ohinau Island, especially around the southern tip?
Divers exploring Ohinau Island must be aware of potential current conditions. Specifically, the southern tip of the island can experience intense mid-water currents, which pose a significant hazard. Always exercise caution and plan your dive carefully, especially when navigating this area.