Coromandel Peninsula: Dive Sites Galore

A few of the dive sites frequented by the team at Dive Zone Whitianga

October 13, 2025
Alderman Islands
Alderman Islands
Dive Zone Whitianga
Dive Zone Whitianga
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Ryan Hansen
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While the Alderman Islands are an absolute highlight of the Coromandel Peninsula, the area actually has a vast array of dive sites that are a lot more accessible, both along the coastline and surrounding islands, says Hazel Bourn, one of the dive cew at Dive Zone Whitianga.

"Heading out of the Whitianga Marina, one of our favourite places to tuck into is Ohinau island, and its next-door neighbour Little Ohinau (Ohinauiti Island).

Ohinau Island: Lunch Bay
Ohinau Island: Lunch Bay

"There are also a number of dive sites around Ohinau, such as the Playground, Lunch Bay, Caesar Bay, Orca Bay, and the Gap to name a few. The positioning and location of Ohinau also allows us to dive in a variety of weather conditions. 

"Sitting off the coast of the Coromandel Peninsula is Great Mercury Island, which boasts a large number of sheltered bays, specifically on the southern side, which we at Dive Zone Whitianga utilise for a lot of our confined open water sessions. The below image shows both of our boats out in the cove for a day of scuba dive training. Other popular bays include Titree Bay and Peachgrove Bay.

Great Mercury Island: The Cove
Great Mercury Island: The Cove

"Down the coast from Hahei is a beautiful stretch of coastline with some stunning features like Champagne Rock and Sparkling wine dive sites. 

Champagne Rock
Looking at Champagne Rock form our boat Mystery Machine

"On our trips down the coast, we are also likely to stop in at famous landmarks such as Cathedral Cove, and Orua Cave, on surface intervals."

Darrell Bird with Cathedral Cove
Shop owner Darrell Bird with Cathedral Cove in the background
Black Rocks
Black Rocks
Motukoruenga Island and The Needle
Motukoruenga Island and The Needle
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