CORALIE BAY - GMI - Goat Island & Hauraki Gulf

Blue Lagoon at Hastings Reef is a proper shallow dive, maxing out around 13 metres. What we really love here is the sheer density of small stuff. It’s not about huge pelagics or dramatic walls, though there is a nice wall feature that drops away from the shallows. Our favourite part has to be the sandy patches, absolutely riddled with sea cucumbers, including leopard and pineapple varieties, just doing their thing. Keep your eyes peeled low, near the sand, and along the coral. We've seen some fantastic decorator crabs camouflaging themselves perfectly, and the nudibranchs are often out and about if you take your time. You’ll spot schools of Yellow Spotted Trevally cruising by, and the cauliflower corals are particularly vibrant. It’s also a solid spot for sunburst and racoon butterflyfish. This site really suits divers who enjoy a slower pace, hunting for the smaller, more elusive creatures. If you’re into macro photography, or just like finding weird and wonderful things tucked into crevices, this is your kind of place.

Location
Goat Island & Hauraki Gulf, New Zealand, Australasia
Coordinates
-36.602800, 175.796000
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 CORALIE BAY - GMI

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 CORALIE BAY - GMI

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 scuba diving at Coralie Bay - GMI?
The maximum depth at Coralie Bay - GMI is 15m, with the middle of the bay offering deeper exploration. Divers can expect to find extensive kelpy reef systems throughout the area.
What kind of marine life and underwater features can divers expect to see at Coralie Bay - GMI?
Divers at Coralie Bay - GMI will encounter huge kelpy reef systems and a standard kelpy rocky bottom interspersed with white sand patches. Marine life is abundant, with plenty of fish and crayfish, and it's often a good spot to see rays and even orcas.
How difficult is diving at Coralie Bay - GMI, and is it suitable for beginner divers?
Diving at Coralie Bay - GMI is rated as intermediate difficulty, despite being described as a nice spot for some easy diving. While it offers accessible conditions, beginner divers should ensure they are comfortable with intermediate sites or dive with an experienced guide.
What are the best times or weather conditions to dive at Coralie Bay - GMI?
The provided data does not specify the best times or weather conditions for diving at Coralie Bay - GMI. For general guidance on optimal diving conditions in New Zealand, please refer to our When to Dive section.
What scuba diving certifications are required to dive at Coralie Bay - GMI?
While specific certification requirements are not listed, given the intermediate difficulty rating of Coralie Bay - GMI, divers should ideally hold an Advanced Open Water certification or equivalent. This ensures you have the necessary skills and experience for deeper exploration and varying conditions.
What are the typical current and water conditions like for diving in Coralie Bay - GMI?
The average visibility at Coralie Bay - GMI is 8m, offering clear views of the extensive kelpy reef systems. Information regarding typical current strength or water temperature is not provided in the available data.