Regional tourism page with clear-water context, wildlife, and charter access details.
Boat dive with a wall, pinnacle, and rich fish life.
Boat dive with a wall, pinnacle, and rich fish life.
Aldermens- Fish Factory is a boat-access wall dive in the Alderman Islands with a nearby pinnacle and rich fish life. It suits confident divers because the profile can deepen quickly, but in the right conditions it delivers classic rocky North Island scenery and steady marine life action. Boat charters from the Coromandel need a calm window, and divers should plan a conservative ascent because the open-water wall can reward a slow, deliberate profile.
Depth range, seasonality, and planning context.
Reported Depth
5m - 21m
Depth Note
Can become a deep dive quite easily.
Best Season
Summer, especially calmer January to March windows.
Typical Conditions
Clear water, a steep wall, a nearby pinnacle, and conditions that suit experienced divers more than trainees.
Hazards, restrictions, and access requirements.
Safety Notes
Plan the dive to avoid unintentionally exceeding intended depth along the wall and around the pinnacle.
Access Restrictions
Access is by private boat or charter only, and landing on the islands is not permitted without a permit.
Legal Notes
This is a High Protection Area; follow DOC rules, do not land without a permit, and do not take or disturb anything in the reserve.
Community notes to help plan your visit.
Scuba Diving
A wall-and-pinnacle dive that can turn deep quickly, best for more experienced divers.
Freediving
Not a primary freedive site; the wall-and-pinnacle profile suits scuba and confident underwater navigation better than breath-hold sessions.
Snorkeling
Not a primary snorkel site; the boat-only access and deeper wall make it better for scuba than casual snorkeling.
Species commonly reported at this site, with direct links into their wildlife guides.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Regional tourism page with clear-water context, wildlife, and charter access details.
Local operator page describing the Aldermen as a popular boat-diving destination.
Official HPA page with access rules, no-landing guidance, and reef habitat context.
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