Michael McFadyen's Scuba Diving Web Site
Home Contact Me Sydney Reef Dive Sites Sydney Shipwrecks NSW Dive Sites Australian Dive Sites Overseas Dive Sites Dive Accidents and Incidents Our Yachting Adventures 4WD Trips Weather Search 20 November 2017 08:27
Navigation
Home

General
About Me
My Diving
FAQ
Downloads
Web Links - Dive Clubs
St George Scuba Club
Some of my Best Photos
Contact Me

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
Overseas Dive Sites
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
Our Dive Boat - Mak Cat
Our 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
Our Yachting Adventures
Below is a list of links to the main pages about our yacht, Catlypso and our Our Yachting Adventures:
  • Purchase of Catlypso
  • Details about Catlypso
  • Cleaning/Repairing Catlypso
  • Our Yachting Adventures.
  • Login
    Username

    Password



    Forgotten your password?
    Request a new one here.
    Michael and Kelly's 4WD Trips
    Click here for a list of our Four Wheel Drive and Camping Trips.
    Current Kareela Weather
    A summary of the current weather conditions at our 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
    "Bare Island has the greatest number of dives of any location in Sydney"
    Hump Wall
    Michael McFadyen's Scuba Diving - Hump Wall Shellharbour is located just over 100 kilometres south of the centre of Sydney. This makes it within 90 minutes drive of most people in the metropolitan area, and much close for those of us who live south of the Harbour. There are a number of good shore dives (The Gutter, Bushrangers Bay and the Gravel Loader) here as well as many great boat dives. As close as this location is to Sydney, not many divers travel the short distance to dive Shellharbour except to do shore dives. It is almost unknown for people to go there for a weekend.

    Well, the dive Club of which I am a member St George Scuba Club, has over the period since 2000 had a weekend dive trip to Shellharbour each year. These have been very well attended. During these trips, we have explored the area a bit and found some great dive sites. Some of these are, of course, known to the local dive shops (as of early 2006 there are three, way too many for such a location, at least one will fail, there is no way there is enough divers to support all three).

    Anyway, when we first started going there (not quite true, we spent a week at Shellharbour diving in January 1994), we were shown a number of dive sites by one of our members. He had originally told me that this site was a pinnacle of sorts. We called it Hump 3. However, I have since sounded around the GPS co-ordinate and this could not be called a pinnacle or hump. What this site has turned out to be is a very large section of reef that is an extension of the end of the Bass Point peninsula.

    From Shellharbour Boat Ramp, head out almost due east for about 3.5 kilometres to GPS Reading 34° 35' 14"S 150° 54' 36"E (using AUS66 datum - see my GPS Page for details). Check your depth sounder and you will see that the bottom is 34 metres or so on the east and the top of the reef is about 23 or 24 metres (it gets shallower to the west before dropping to 27 metres and then sloping to 30 metres or more). Anyway, anchor as close as you can to the edge of the reef. In the area where the GPS reading will put you, you will find that you are on a corner where the reef runs south and north-west from where you are located. At this spot the reef slopes to the north-east at about 30° and south of the reading it drops in a shear wall.

    Once you are on the bottom, head to the east if you are not on the edge and you will quickly see the wall or slope. Head south and follow the wall. The bottom of the reef is 34 metres. The wall has lots of sponges, sea squirts and other fixed marine life. There are a few tiny gorgonias along this section of wall. The top of the wall is essentially flat, but there are some small holes. The top has kelp in some sections. After 7 minutes or so, turn around and come back to the anchor spot. If you have air, continue past the anchor and you will turn to the north-west. The reef slopes down to your right, with the bottom composed of small boulders. Due to the depth, you will only get about 15 minutes before entering decompression if you stay close to the sand or about 20 minutes if you vary your depth.

    This site has lots of colourful fixed marine life but there are not that many fish around. We saw a few Port Jackson sharks, some black reef leatherjackets, seapike, yellowtail and one-spot pullers. There are also lots of nudibranches. Despite the lack of fishlife, it is a really interesting dive.

    Of course, due to the depth, this is only a dive for the very experienced.

    Copyright © Michael McFadyen 1990 to 2017
    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 by Michael McFadyen
    without any help from the Australian Dive Industry since 1996!