Matts Crack
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 - Matts Crack offers some of Poor Knights Islands's richest reef diving. Water ranges 15-22°C, warmest January, February, March.
Matt's Crack at the Poor Knights always delivers. We love the way the light streams in, particularly around midday, creating those iconic blue silhouettes that photographers chase. You drop down into this 60-metre-long fissure, about 10 metres wide at the mouth, narrowing to a snug 3 metres further in. It’s open to the surface the whole way, so you’re never truly in a cave, just a very dramatic canyon. Inside, the walls are plastered with sponges and anemones, and you’ll spot scorpionfish tucked into crevices. Keep an eye out for nudibranchs crawling across the kelp and sea rimu. Demoiselles and maomao flutter in the sun-dappled sections, while deeper in the shadows, big snapper often lurk. For us, the thrill is in the atmosphere, that dramatic play of light and shadow, more than any single creature. It’s a pretty easy dive, maxing out at 20 metres, so it suits most divers looking for something a bit different.
Nearest Dive Centres to Matts Crack
Dive shops near Matts Crack
Dive! Tutukaka
Moana Futures Ltd
Northland Dive
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Reviews for Matts Crack
Conditions
Ocean conditions, forecast and tides for Matts Crack
Matts Crack Ocean Conditions
Monthly averages for Matts Crack, 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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