www.discovercoromandel.co.nz · Travel Guide
Regional Coromandel dive guide supporting offshore island access and clearer island conditions.
Dive Spot Guide•
Ohinau Island
Offshore Mercury Islands boat dive with fish life and currenty headlands.
ScubaBoat EntryIntermediate
Reef
Boat-only island diving off the Coromandel with clear-water reef sections around much of the island, while the southern tip needs careful current planning.
About Ohinau Island
Ohinau Island is an offshore Mercury Islands dive area where rocky reefs, wash-through terrain, and fish-rich blue water wrap around much of the island. It rewards divers who want classic Coromandel island diving with schooling fish and varied topography, but the southern end demands proper current awareness and is better treated as a weather-dependent advanced section rather than a casual circuit.
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Research Estimate At Ohinau Island
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 15m
AccessChallenging entry effort
Marine LifeGreat variety
FacilitiesNo facilities
Current StrengthStrong current
Where Is Ohinau Island?
This spotNearby spots
Community sourced coordinates.
Ohinau Island Planning Details
Depth range, seasonality, and planning context.
Best Season
Ohinau Island is generally best in settled summer and autumn weather when boat access is easier and visibility is more consistently strong. Winter fronts can make offshore conditions less reliable.
Typical Conditions
Expect offshore island conditions with rocky reef, schooling fish, and clearer water than many inner-bay Coromandel sites. Current can build around points and especially around the southern tip, so conditions vary materially with tide and swell.
Safety & Access At Ohinau Island
Hazards, restrictions, and access requirements.
Key Hazards
Strong current
Safety Notes
Be cautious of potentially intense mid-water currents around the southern tip of the island.
Access Restrictions
Ohinau Island is an offshore boat dive with no practical shore access. Divers depend on weather, sea state, and a suitable vessel departure from the Coromandel coast.
Local Intel For Ohinau Island
Community notes to help plan your visit.
Scuba
Most dives around Ohinau Island are planned as boat-led reef explorations, with site choice and route shaped by weather, current, and the experience level of the group.
Ohinau Island Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Ohinau Island.
Current Snapshot
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🌥️Variable
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Surface / Entry
Wind No data · Tide No data
Sea State
Swell No data · Period unavailable
Visibility Outlook
Rain chance No data
Wind
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Exposure Profile at Ohinau Island
Directional shelter context for incoming swell.
Exposure Note
Hourly forecast data is not available yet.
Wildlife at Ohinau Island
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Ohinau Island
Community dive logs and visit reports for this site.
No Dive Logs Yet
Be the first to log a dive at this spot and share your experience!
Dive Spot Log Averages At Ohinau Island
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility15m
Activity
No dive activity logged yet.
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Ohinau Island Guide - Frequently Asked Questions
Planning answers for access, conditions, timing, and site logistics.
Ohinau Island Guide - Sources and Updates
Last Updated
Research Sources
www.go-dive.co.nz · Operator
Coromandel charter context for Mercury Islands offshore boat diving logistics.
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