Michael McFadyen's Scuba Diving Web Site
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My Diving
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St George Scuba Club
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Dive Sites
Sydney Reef Dive Sites
Sydney Shipwrecks
Kelly Talking on ABC Sydney about Shipwrecks
NSW Dive Sites
Sydney Shipwreck Summary
NSW Shipwreck GPS/Marks
Australian Dive Sites
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Aircraft I have Dived
Old Bottles

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
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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.
    Current Kareela Weather
    A summary of the current weather conditions at my house at Kareela, Sydney, is below. Click here for more Detailed Diving Weather and Conditions. Weather from Michael McFadyen's Tempe Weather Station

    Conditions at
    23:49 on 23/1/17

    Temperature 25.6°C
    Humidity 65.0%
    Barometer 1003.4hPa
    Rate -0.3hPa/hr
    Wind Speed: 0 km/hr
    Wind Direction S
    Rainfall for Today 0.0mm
    Rainfall last hour 0.0 mm
    Rainfall last 24 hours 0.0 mm
    Rainfall at Start of Month 814.6 mm
    Rainfall this Year 827.0 mm
    Today's Extremes
    High Temperature 31.2°C at 15:48
    Low Temperature 20.9°C at 6:27
    Peak Wind Gust 0km/hr at 0:00
    Weather from Michael McFadyen's Kirrawee Weather Station
    Yesterday's Extremes
    High Temperature 27.5°C at 17:11
    Low Temperature 19.8°C at 6:29
    Rainfall at Start of Yesterday 827.0 mm
    Rainfall at End of Yesterday 827.0 mm
    Weather from Michael McFadyen's Tempe Weather Station
    Astronomical Data
    Sunrise 5:06
    Sunset 19:05
    Moonrise 1:09
    Moonset 15:04

    Home Brewing
    Click here for an article about Home Brewing.
    Sydney Dive Site Hints
    "Wobbegong sharks are now increasingly rare"
    Black Rock Passage
    Michael McFadyen's Scuba Diving - Black Rock Passage The airport at Rarotonga, the main island of the Cook Islands, is located on the north-western corner of the island. The runway (which is large enough to handle Boeing-747s), extends a little out across the edge of the original shoreline. The runway runs approximately east-west (perhaps the western end is slightly south of west). Straight off the centre of the runway there is a dive site called Diana's Ridge. This is also straight off the beach to the south of the runway and north of Black Rock and the dive sites called Black Rock Chimneys and Black Rock Passage. These rocks are (as far as I can see) the only major outcrop of rocks on the shore's edge of the whole 34 kilometres of the island's circumference. For most of the island, the fringing coral reef comes close to the shore, like it does off Black Rocks. The rocks give their name to the small village (locality?) and some villas. They are just north of the Edgewater Resort and south of the western end of the runway. This site is about eight minutes from Avatui Harbour.

    The anchoring spot is 30 to 50 metres off the fringing reef. The GPS reading for this site is a latitude of 21 12.315' S and longitude of 159 49.530' W. Note that this GPS Reading was taken using WGS84 as the map datum. See my GPS Page for more details.

    This site consists of a series of ridges and gullies. The depth at the anchoring spot is above seven metres and there is a gully right next to it is about 12 metres. As you go west the reef drops gradually to 25 metres. surface.

    Guineafowl pufferThreadfin butterflyfish
    Guineafowl pufferThreadfin butterflyfish

    The coral here is not very good. I estimated that there was only about 15% live coral. I also saw no sponges at all and not even a tiny gorgonia (let alone a huge one like seen in many South Pacific Ocean countries). There were some blue, yellow and pink Christmas tree worms in the coral, one of only a few locations that we saw them. There were a few giant clams, although not too huge. Fishlife was also sparce. We saw two barracudas and a few bluefin trevally as well as a nice Guineafowl puffer. There were a few surgeonfish and trevally, some different butterflyfish (threadfin, longnose) and a few Moorish idols. That is about it except for heaps of black sea cucumbers.

    The one good thing about this dive was the visibility, in excess of 40 metres. Water temperature in June was 24.0° and air temperature 23-25°.

    For more information about the Cook Islands, especially Rarotonga, see my Cook Islands General Information Page.

    Copyright © Michael McFadyen 1990 to 2019
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    without any help from the Australian Dive Industry since 1996!