Goat Island & Hauraki Gulf, New Zealand
    Wharekawa Harbour Wildlife Refuge

    Aldermens- HoneyComb

    Best months: Jan–Apr

    Protected Area

    Wharekawa Harbour Wildlife Refuge

    Why dive here

    With 72+ marine species recorded in the area - including blue sharks, dolphins, hammerhead sharks, humpback whales and seahorses - Aldermens- HoneyComb offers some of Goat Island & Hauraki Gulf's richest cave diving. Water ranges 15-21°C, warmest January, February, March.

    Best timeJan–Apr
    WetsuitA 5mm wetsuit
    Marine lifeBlue Sharks, Dolphins, Hammerhead Sharks, Humpback Whales and Seahorses · 72+ species recorded
    Water15-21°C · warmest January, February, March
    CharacterCave dive
    StandoutRich in charismatic marine life

    Aldermen’s Honeycomb isn't just a dive; it’s an exploration. We love how the site immediately draws you in, pulling you through those aptly named honeycomb-like tunnels. Sunlight filters through gaps in the rock, creating these incredible shafts of light, dancing on the walls. It’s an almost theatrical entrance to the deeper reef. Once you emerge, the southern wall drops away, a dark contrast to the brighter caves. This is where we’ve often found kingfish and kahawai cruising in the current – keep an eye out for them, they move fast. The wall itself is dotted with kina, and we’ve spotted some surprisingly large smooth skates settled on the sand at the base, looking almost prehistoric. Visibility here generally holds around 18 metres, which is enough to appreciate the scale of the rock. Our favourite moments are drifting along the wall, feeling that gentle push of the current, watching the larger fish move in and out of view. It's a site that rewards a slow, observant diver, offering a mix of tight, intimate spaces and expansive reef. Just remember to check the currents before you drop in; they can be a bit frisky along that southern stretch.

    Safety Notes

    Overhead environment - never enter without proper cave/cavern training, redundant equipment, and a guideline.

    Today05:3918:2812h 49m daylightGolden hour 17:54

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    Conditions

    Ocean conditions, forecast and tides for Aldermens- HoneyComb

    Aldermens- HoneyComb Ocean Conditions

    Monthly averages for Aldermens- HoneyComb, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-36.93, 175.86) (22km away)

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    October Averages

    Sea Temperature

    16°C

    60°F · Range: 14.5–16.9°C

    Current Speed

    1.41 cm/s

    Direction: SE (135°)

    Chlorophyll-a

    0.497 mg/m³

    Moderate productivity

    Salinity

    34.91 PSU

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)

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