Blue MaoMao Arch
Protected Area
Poor Knights Islands
Why dive here
With 79+ marine species recorded in the area - including blue sharks, dolphins, hammerhead sharks, humpback whales and orcas - Blue MaoMao Arch offers some of Poor Knights Islands's richest drift diving. Water ranges 15-22°C, warmest January, February, March.
Blue Maomao Arch might just be our favourite Poor Knights spot, and that’s saying something. Drop in, and you’re immediately enveloped by thousands of blue maomao, a shimmering curtain that pulses with the light. We love hitting this site in the late afternoon; the sun angles just right, spearing through the water and turning the blue maomao into living stained glass as they swirl through the archway. It’s an easy dive, maxing out around 15 metres, so you can really take your time drifting through the arch. Look for the massive schools of demoiselles too, they add another layer of movement to the already busy scene. Keep an eye out for inquisitive snapper poking their heads from crevices and the occasional kingfish cruising by. It’s not about finding rare critters here, it’s about that sheer, overwhelming volume of life and the play of light. This site is pure magic for photographers and anyone who just wants to lose themselves in a massive fish aggregation.
Safety Notes
Drift dive - carry a surface marker buoy (SMB) and stay with your group. Brief the current direction before entry.
Nearest Dive Centres to Blue MaoMao Arch
Dive shops near Blue MaoMao Arch
Dive! Tutukaka
Moana Futures Ltd
Northland Dive
DIVE NOW
Reviews for Blue MaoMao Arch
Conditions
Ocean conditions, forecast and tides for Blue MaoMao Arch
Blue MaoMao Arch Ocean Conditions
Monthly averages for Blue MaoMao Arch, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-35.84, 174.61) (14km away)
October Averages
Sea Temperature
16°C
60°F · Range: 14.8–17.1°C
Current Speed
11.4 cm/s
Direction: SE (142.1°)
Chlorophyll-a
0.388 mg/m³
Moderate productivity
Salinity
35.44 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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