Michael McFadyen's Scuba Diving Web Site
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About Me
My Diving
Web Links - Dive Clubs
St George Scuba Club
Some of my Best Photos
Contact Me

Dive Sites
Sydney Reef Dive Sites
Sydney Shipwrecks
Sydney Dive Visibility, Swell and Temps
Kelly Talking on ABC Sydney about Shipwrecks
NSW Dive Sites
Sydney Shipwreck Summary
NSW Shipwreck GPS/Marks
Australian Dive Sites
Overseas Dive Sites
Aircraft I have Dived
Old Bottles
Free Shipwreck Books

Dive Related Equipment
Shearwater Predator and Heinrichs Weikamp OSTC 2N
Uwatec Aladin Dive Computers
Apollo AV1 Underwater Scooter
Bauer Compressor
DIY Oxygen Stick - Nitrox
GoPro HD Hero Video Camera
My Camera Setup
Purchase of New Dive Boat
My Dive Boat - Mak Cat
My Old Dive Boat - Le Scat
My Dive Gear
GPS and Diving
Make Your Own Car Tank Rack

Marine Life
Rarer Sydney Marine Life
Bare Island Pygmy Pipe Horses
Bare Island Sea Horses
Bare Island Nudibranchs
Bare Island Marine Life
Encounter with Southern Right Whale and Calf

Other Dive Info
How Weather Affects Diving in Sydney
Visibility and Wave Averages in Sydney
Waves and Diving
Diving Weather and Sea Conditions
Tide Tables
Dive Accidents and Incidents
Dive Book Reviews
Site Map
Noel Hitchins 1951-2005
Lloyd Bridges - Mike Nelson in Sea Hunt
My Yachting Adventures
Below is a list of links to the main pages about my yacht, Catlypso and My Yachting Adventures:
  • Purchase of Catlypso
  • Details about Catlypso
  • Cleaning/Repairing Catlypso
  • My Yachting Adventures.
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    Michael's 4WD Trips
    Click here for a list of my Four Wheel Drive and Camping Trips.
    Home Brewing
    Click here for an article about Home Brewing.
    Sydney Dive Site Hints
    "TSS Currajong is right under the main shipping channel in Sydney Harbour"
    Cathedral Cave (Bay of Islands) B
    The Bay of Islands area of the North Island of New Zealand has some of the most beautiful scenery I have seen anywhere in the world. It is really spectacular, with mirror seas backed by rocky and green islands and land. The Bay of Islands area is about three hours (240 kilometres) north of Auckland.

    The mainland north-eastern section of the Bay of Islands has as its major feature Cape Brett. This was named in 1769 by Lieutenant James Cook after Sir Piercy Brett, one of the Lords of the Admiralty. There is a lighthouse here (you can walk to it, eight hours from the nearest road) and it overlooks Piercy Island. It is said that Cook called the island after Brett due to the remarkable natural feature he saw.

    Cathedral CaveCape Brett
    A satellite photo of the area showing the anchor spot for Cathedral CaveLooking back at Cape Brett from Cathedral Cave

    The south-western part of the island has a huge hole right through it (hence Cook's play on Brett's first name - piercy). This is now called "The Hole in the Rock" and is the iconic feature of the Bay of Islands whenever you see it advertised or shown on television. This hole is so large enven the really big tourist cruise boats fromRussell go through it when conditions permit. The island is called Motukokako Island by the Maori.

    From the boat ramp at Te Uenga it is about 25 minutes in a very fast boat (say 30 or more for most) to this location. There are a number of excellent dive sites here, probably more than those that are regularly dived by the local dive operations.

    Hole in the Rock Cathedral Cave
    The Hole in the RockInside Cathedral Cave

    Just to the north of The Hole in the Rock is Cathedral Cave. GPS S35Âș 09' 59.0" W174Âș 20' 39.9" will put you out in front of the cave. This cave is large enough to fit a large boat inside.

    The anchor will be invariably be in deep water, at least 35 metres, so do not go right to the bottom once you start your descent. Head over to the wall of the island, probably south-west from your anchor. Then head south over to the western side of the cave and follow this inside. Once inside you will see that this is a huge cave, at least 100 metres long.

    Cathedral Cave Cathedral Cave
    Coming along the western wall of Cathedral Cave Lookong out from a fair way inside Cathedral Cave

    The bottom of the cave comes up from about 30 metres or so at the front in a gradual rise. There are quite a few medium sized bullrays swimming around in the cave. Even when you get to the end of the cave, the bottom is over 20 metres deep. There are lots of luderick at the end as well.

    The bottom consists of boulders and rocks. Once you reach the end, cross over to the eastern wall and follow this back out. You can get some nice silhouette photographs as you head along the walls of the cave.

    By the time you exit the cave you will have been down about 25 minutes at least. You should still have lots of air and bottom time, so head to the north and explore the wall. There are lots of two spot demoiselles here and the occasional kingfish and snapper.
    Cathedral CaveCathedral Cave
    Kelly coming across the entrance to Cathedral Cave A shot right from the back of Cathedral Cave

    The depth outside the cave goes to well over 30 metres, but stay up in the 12 to 20 metre level. There is a lot to see. Gradually ascend and do your safety stop on the wall. There are some eels in holes in this wall, including a very old one with a deformed mouth (see the photograph). You can easily do a dive of over 50 minutes at this site.

    The visibility inside the cave is at least 40 metres and outside 30 metres. The water temperature was 22ÂșC in March and the seas millpond. A magical dive!

    Cathedral CaveCathedral Cave
    This old large moray was on the wall, not his deformed mouth/jawKelly on the wall outside Cathedral Cave

    Copyright © Michael McFadyen 1990 to 2024
    Non-commercial use of an article or photograph is permitted with appropriate URL reference to this site.
    Dive shops, dive operators, publications and government departments cannot use anything without first seeking and receiving approval from Michael McFadyen.
    This web site has been wholly thought up, designed, constructed and funded for almost 30 years by Michael McFadyen without any help from the Australian Dive Industry.
    Website created 1996!