Serpent Rock
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 - Serpent Rock offers some of Poor Knights Islands's richest reef diving. Water ranges 15-22°C, warmest January, February, March.
Serpent Rock is one of our favourite Poor Knights spots, especially when a bit of surge rolls through. It’s an oddly shaped island above water, but underwater, the magic really happens. We love dropping down onto those steep, encrusted walls. They’re absolutely packed with life, from tiny nudibranchs, if you’ve got the eyes for them, to the chunky scorpionfish just blending in. The trick here is to not get too tunnel-visioned on the wall. Take a moment, turn around, and look out into the blue. That’s where the real show often unfolds. We’ve seen incredible shoaling action, schools of yellowtail or mackerel, with kingfish or even a marlin ghosting in from the depths. Finding that pressure point where the currents meet is key; that’s where the hunters gather. Max depth is around 20 metres, so it’s a site most divers can comfortably explore. It’s perfect for those who appreciate both macro life and the chance of spotting pelagics, especially when the visibility is good.
Nearest Dive Centres to Serpent Rock
Dive shops near Serpent Rock
Dive! Tutukaka
Moana Futures Ltd
Northland Dive
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Reviews for Serpent Rock
Conditions
Ocean conditions, forecast and tides for Serpent Rock
Serpent Rock Ocean Conditions
Monthly averages for Serpent Rock, 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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