Mathesons Bay
Protected Area
Cape Rodney-Okakari Point
Why dive here
With 79+ marine species recorded in the area - including blue sharks, dolphins, hammerhead sharks, humpback whales and orcas - Mathesons Bay offers some of Poor Knights Islands's richest reef diving. Water ranges 15-22°C, warmest January, February, March.
Mathesons Bay is a spot we usually hit when the wind picks up a bit, or when we just want a relaxed dive that still feels like Poor Knights. It's properly sheltered, a calm contrast to some of the more dramatic outer walls. We always enter from the beach; it’s just easier, though you can scramble over the rocks at high tide if you’re feeling adventurous. The whole bay sits pretty shallow, topping out at around 7 metres. We often find ourselves just floating above the kelp and rocky reef, watching the triplefins dart around. The visibility averages about six metres, which, for a sheltered bay, is decent enough to really focus on the smaller stuff. We’ve had great luck spotting blackfoot pāua clinging to the rocks and green rock lobsters tucked into crevices. Keep an eye out for stingrays gliding over the sandy patches; they're pretty common here. It’s perfect for a long, slow dive, especially if you’re into macro life or just getting comfortable again after a break.
Nearest Dive Centres to Mathesons Bay
Dive shops near Mathesons Bay
GOAT ISLAND DIVE and SNORKEL
NEW ZEALAND DIVING
Auckland Scuba - Silverdale
Reviews for Mathesons Bay
Conditions
Ocean conditions, forecast and tides for Mathesons Bay
Mathesons Bay Ocean Conditions
Monthly averages for Mathesons Bay, 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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