Cathedral Cove Marine Reserve – Hauraki Gulf & Coromandel

15m Max

5-15m Vis

shore

Site Overview

Cathedral Cove Marine Reserve on the Coromandel Peninsula combines one of New Zealand's most famous scenic landmarks with excellent shore diving through kelp forests, rocky reefs, and underwater caves. The marine reserve, known as Te Whanganui-A-Hei, protects the rocky coastline around the famous Cathedral Cove arch, creating a sanctuary where crayfish, moray eels, and diverse reef fish thrive in the sheltered waters. The underwater landscape mirrors the dramatic volcanic geology above, with rocky pinnacles, swim-throughs, and small cave systems that invite exploration at accessible depths. Dense ecklonia kelp forests create a canopy over the reef, filtering sunlight into beautiful patterns on the rocky substrate below. Crayfish are particularly abundant in the marine reserve, reaching impressive sizes in the protected waters. The shore access is via the same walking track that leads to the famous Cathedral Cove beach, making this one of the most logistically convenient dive sites on the Coromandel Peninsula. The shallow depth range of 2 to 15 metres and calm conditions make this an ideal training site and a relaxing dive for all levels. The combination of scenic beauty above and below water, marine reserve protection, and easy access makes Cathedral Cove a must-visit destination for divers exploring the Coromandel Peninsula.

Dive Briefing

"The dive begins at the rocky shore entry near the Cathedral Cove walking track, where a short descent leads to the kelp forest edge at approximately 3 metres. Follow the reef along the coastline, exploring the kelp forest and rocky outcrops that provide habitat for crayfish and moray eels. The marine reserve protection means crayfish are abundant and approachable. Continue along the reef to the small cave systems and swim-throughs at 8 to 12 metres, where torch light reveals colourful sponge and soft coral growth. Stingrays may be encountered on the sandy patches between reef sections. Blue maomao school in the mid-water column above the reef. The return follows the shallower reef crest at 3 to 6 metres where the kelp canopy is thinnest and light penetration is best. The safety stop is conducted in the shallow kelp forest near the entry point. Torch light reveals colourful sponge gardens and small cryptic species hiding in the rock crevices throughout the dive."