Black Rocks Lagoon

Type:

Scuba DivingSnorkeling

Entry:Unknown

Difficulty:Intermediate

Tags:

Kelp ForestLagoon

About This Dive Spot

Black Rocks Lagoon offers sheltered diving inside a lagoon with a shallow bay, abundant fish, and kelp along the edges. Outside the lagoon, an outer reef system features large pinnacles and gullies suitable for swimming through. The outer reef is a deeper, more exposed area that can be affected by wind, swell, and current. Fish life is typical, though parts of the lagoon interior are described as becoming more barren due to kina.

Planning details

Reported depth and seasonality.

Depth note

The lagoon is described as shallow, while the outer reef is described as deeper.

Typical conditions

Inner lagoon is sheltered with shallow water; the outer reef is exposed to wind and swell and may have current.

Safety & access

Hazards, restrictions, and required precautions.

Hazards

Strong currentSurgeWaves

Safety notes

The outer reef is exposed and can be impacted by wind, swell, and current; choose conditions carefully before diving outside the lagoon.

Local intel

Community notes to help plan your visit.

Tailored notes for different activities.

Scuba

Suitable for a range of divers in the sheltered lagoon; the outer reef is a deeper, more exposed dive with pinnacles and gullies.

Dive Spot Log Averages

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Dive Conditions Planner

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Spots Near Black Rocks Lagoon

📍 2.9 km

Little Ohinau

Not Set

Little Ohinau has two main dive areas: Little O Bay and Turtle Cove. Turtle Cove is described as better suited to experienced divers due to current along the outer edges. The site features a steep reef with a prominent weed edge that suits both divers and freedivers. Fish life commonly includes kingfish and porae, with boar fish seen occasionally.

📍 3.5 km

OHINAU ISLAND

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Ohinau Island, part of the Mercury Island group off the Coromandel Peninsula, is described as offering excellent diving around much of the island. Divers can expect abundant fish life throughout the area, with particular caution advised at the island’s southern tip where mid-water currents can become intense.

📍 4.7 km

THE MAORI LADY

Not Set

The Maori Lady is an island dive area with three distinct dive sites around the island. The island can provide shelter in most weather, with each site offering a different experience. Underwater, the area features typical New Zealand reef terrain with sandy bottoms, reef structure, and weed edges.

📍 4.8 km

KORAPUKI

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Korapuki is an island dive area reached in about {{ 40 | duration:minutes }}utes to an hour from Whitianga. Diving is available around much of the island, with weed lines and rocky outcrops providing structure and habitat. The site is popular with both spearfishers and scuba divers, and water movement can attract larger fish.

📍 6.3 km

GREEN ISLAND

Not Set

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Green Island is a rocky boulder outcrop with numerous cracks and crevasses. Rocks breach the surface, giving the area a graveyard-like appearance. The site has small weed patches and is characterized by plenty of water movement, which can add to the challenge around the exposed rocks.

📍 6.6 km

OPITO BAY

Not Set

Opito Bay can be reached by a short drive or by boat and is known for its sandy seabed and scallop beds. The scallop bed has been closed for the next two years due to poor condition. Despite the sandy bottom, the seafloor supports abundant marine life, including octopus, nudibranchs (sea slugs), gurnards, and flounder.

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Frequently Asked Questions

What's the best entry point at Black Rocks Lagoon?

Entry at Black Rocks Lagoon is detailed in the spot description above. Look for specific landmarks, access paths, and any tide or condition requirements. Local divers often share updated entry tips in their dive logs.

What conditions are best for diving Black Rocks Lagoon?

Optimal conditions at Black Rocks Lagoon depend on several factors including tide, wind, and season. Check recent dive logs for current condition reports and patterns. Generally, calmer seas and high tide provide better visibility and easier entry.

What is the maximum depth and typical visibility at Black Rocks Lagoon?

Depth and visibility information for Black Rocks Lagoon can be found in the spot details and recent dive logs. Conditions can vary significantly based on weather, tide, and season. Always plan your dive according to current conditions and your certification level.

Are there any safety considerations or local etiquette at Black Rocks Lagoon?

When diving Black Rocks Lagoon, respect local regulations, marine life, and other water users. Be aware of any specific hazards like currents or boat traffic mentioned in the spot description. Follow Leave No Trace principles and local diving etiquette.