Dive-site story
Trevor's Rocks sits within the Poor Knights Islands Marine Reserve off the Northland coast. The underwater landscape consists of steep volcanic rock formations, rocky fissures, and kelp-covered boulders that drop off into deeper open water. Because full no-take protection has been enforced here for decades, fish populations are dense and display remarkably bold behavior around divers.
Dense aggregations of blue and pink maomao sweeping past volcanic boulders
Kelp-draped rock faces harboring diverse nudibranch species and moray eels
Subtropical fish species mixing with temperate New Zealand marine fauna
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Late summer and autumn bring the warmest water along with subtropical currents, while winter months offer peak underwater visibility despite cooler temperatures.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Blue maomaoScorpis violacea | Common | ||||||||||||
| Pink maomaoCaprodon longimanus | Common | ||||||||||||
| Sandager's wrasseCoris sandageri | Common | ||||||||||||
| Lord Howe coralfishAmphichaetodon howensis | Common | ||||||||||||
| Mosaic morayEnchelycore ramosa | Common | ||||||||||||
| Short-tail stingrayBathytoshia brevicaudata | Seasonal |
Marine forecast
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