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Coromandel island-dive context.
Dive Spot Guide•
Little Ohinau
Shallow Mercury Islands reef with current edges.
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Local operator required
Boat access and current-aware routing make a local operator the practical default.
Little Ohinau combines a calmer bay with a more demanding cove, making it a flexible boat dive that shifts from easy reef work to stronger current at the edges.
About Little Ohinau
Little Ohinau is a boat-only Mercury Islands reef with two main dive areas, a shallow bay, and a steeper cove edge that adds more current and route awareness. It suits divers and freedivers who want a shallow island dive that can stay relaxed in the sheltered section but still feels serious once you move toward the outer edges.
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Research Estimate At Little Ohinau
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 9m
AccessModerate entry effort
Aquatic LifeGreat variety
CurrentStrong current
Where Is Little Ohinau?
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Community sourced coordinates.
Little Ohinau Planning Details
Depth range, seasonality, and planning context.
Reported Depth
0m - 15m
Depth Note
Steep reef with a prominent weed edge and a maximum depth around 15 m.
Best Season
Year-round, best when sea state and current are calm enough for the bay and cove edges.
Typical Conditions
Shallow reef with a calmer bay and a more exposed cove edge that can build current along the borders.
Safety & Access At Little Ohinau
Hazards, restrictions, and access requirements.
Key Hazards
Strong current
Safety Notes
Stay conservative at the edges and treat Turtle Cove as the more serious half of the site.
Access Restrictions
Boat-only access and current-aware planning are the practical default, especially when aiming for the outer edges.
Legal Notes
Follow Mercury Islands access rules and the boat operator current plan.
Local Intel For Little Ohinau
Community notes to help plan your visit.
Scuba Diving
Turtle Cove is described as a better option for more experienced divers, with current along the edges.
Freediving
The steep reef and weed edge suit freedivers in calmer sections, though the cove edges are more demanding.
Snorkeling
Snorkeling is limited to the calmest edges; the site is better known for scuba and freediving.
Wildlife at Little Ohinau
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Little Ohinau
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Little Ohinau
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility9m
Activity
No dive activity logged yet.
