www.aa.co.nz · Tourism Editorial
Independent travel editorial with boat access, current, kelp-reef and wildlife notes for the Mercury Islands group.
Dive Spot Guide•
DOUBLE ISLAND
Double Island is a boat-access kelp-reef dive in the Mercury Islands.
Local operator required
Local Whitianga operators typically choose sheltered Mercury Islands sites and handle the boat run.
Plan it as a temperate boat dive with walls, pinnacles and small caves; it is generally easy to navigate and works best on sheltered island-weather days.
About DOUBLE ISLAND
Boat-access kelp-reef dive in the Mercury Islands with walls, pinnacles and small caves. Double Island is an easy-to-navigate temperate site with lots of fish life and sheltered options from the wind, so it works well as an add-on while diving the Coromandel islands. Plan for temperate water, weather-dependent exposure and a boat schedule that favors calm island days.
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Research Estimate At DOUBLE ISLAND
Conservative baseline from public research. No community dives logged yet.
AccessModerate entry effort
CoralHeavily damaged
Aquatic LifeGreat variety
FacilitiesGood facilities
CurrentModerate current
SurgeModerate surge
Where Is DOUBLE ISLAND?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
DOUBLE ISLAND Planning Details
Depth range, seasonality, and planning context.
Best Season
Summer for the most frequent boat trips, with winter weekend access still available.
Typical Conditions
Temperate offshore kelp-reef diving with walls, pinnacles and small caves; sheltered coves are often available from the wind.
Safety & Access At DOUBLE ISLAND
Site conditions, restrictions, and access requirements.
Site Conditions
Overhead environment
Safety Notes
Small caves mean overhead awareness and good buoyancy matter; stay within training and comfort limits.
Access Restrictions
Boat access only; the smaller Mercury Islands are protected reserves and landing is not permitted.
Legal Notes
The smaller Mercury Islands are nature reserves, so planning should assume boat access only.
Local Intel For DOUBLE ISLAND
Community notes to help plan your visit.
Scuba Diving
Entertaining scuba dive featuring walls, pinnacles, and small caves, and is described as easy to navigate.
Freediving
Not a dedicated freedive site; it is normally dived as a scuba reef.
Snorkeling
Snorkeling is only possible when conditions allow; the site is mainly a scuba dive.
Wildlife at DOUBLE ISLAND
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At DOUBLE ISLAND
Community dive logs and visit reports for this site.
Dive Spot Log Averages At DOUBLE ISLAND
Average conditions based on logged dives & visits.
No community dive data has been logged here yet. Be the first to record a dive and seed the averages.
