RED MERCS
Protected Area
Rabbit Island
Why dive here
With 72+ marine species recorded in the area - including blue sharks, dolphins, hammerhead sharks, humpback whales and seahorses - RED MERCS offers some of Goat Island & Hauraki Gulf's richest wall diving. Water ranges 15-21°C, warmest January, February, March.
Red Mercs is one of our absolute favourite sites around Goat Island, a proper New Zealand classic. The real magic here is the sheer density of fish. We've often dropped in to find ourselves completely enveloped by schools of demoiselles and swarms of snapper, so thick they almost block out the sun. It's a proper visual feast, the kind of dive where you just hang still and let the current bring the show to you. The site is essentially a series of rocky pins and ledges that drop down to about 18 metres, covered in kelp and soft corals. It's a bit exposed, so picking your day is key – we always check the swell reports carefully. When the conditions line up, though, the visibility can stretch to 15 metres, and the place just explodes with life. Keep an eye out for those big California yellowtail cruising through, and the vibrant flash of crimson cleaner fish zipping around the rocks. It’s a site that really rewards a slow, observant diver, perfect for those who love feeling part of a bustling underwater world rather than just passing through it.
Nearest Dive Centres to RED MERCS
Dive shops near RED MERCS
Salt Aotearoa
Cathedral Cove Dive Ltd
Dive Zone Whitianga
Reviews for RED MERCS
Conditions
Ocean conditions, forecast and tides for RED MERCS
RED MERCS Ocean Conditions
Monthly averages for RED MERCS, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-36.93, 175.86) (22km away)
October Averages
Sea Temperature
16°C
60°F · Range: 14.5–16.9°C
Current Speed
1.41 cm/s
Direction: SE (135°)
Chlorophyll-a
0.497 mg/m³
Moderate productivity
Salinity
34.91 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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