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 08:23
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
    "Gordons Bay (Thommos) is as boring as bat shit"
    Foggy Cave
    Michael McFadyen's Scuba Diving - Foggy Cave One of the few sections of the New South Wales coast that I have not dived in any great detail is the Central Coast area. Over the past 10 years I have often thought about diving the area from Broken Bay (the northern boundary of the Sydney Metropolitan Area) north. Despite this, the closest I have ever gotten was to dive Maitland Bay (home to the wreck of paddle steamer PS Maitland) where I did what was, perhaps, one of the most boring dives I have ever done. Until early October 1997 I had done no other dives on the Central Coast.

    This was a bit ironic, because as a child, I spent many a period leading up to Christmas on holidays in The Entrance/Shelley Beach area. While here I would spend most of my time in the water with my friends body surfing and snorkelling. However, while I remember visiting Norah Head, Bateau Bay, Avoca Beach and other "towns" here, I do not ever remember going to Terrigal.

    On 10 October 1997 I travelled to Gosford as a guest of the Terrigal Underwater Group (TUG). I had been invited by the outspoken former DIVE Log columnist, Christian Gerzner, a member of TUG, to give a presentation to the Club on the wrecks of Chuuk Lagoon. As a "reward", I was also invited to dive with TUG the next morning. After an exciting meeting (nothing like I can ever remember seeing before), I gave a short talk about Chuuk Lagoon, an overview of Operation Hailstorm and showed some slides of the wrecks.

    After spending the night at Christian's house at Terrigal, the next morning we drove the few kilometres to Terrigal Haven where the TUG boat is moored. Our original plan was to dive the wreck of the SS Galava but unforeseen circumstances meant we had to change our plans. Christian decided that Foggy Cave was to be the alternative dive site. We loaded our gear aboard the dive boat (and watched Christian do a very shallow dive in his open dry suit while loading the boat) and were soon on our way to this well-known dive site.

    The weather conditions were very good but a slight north-easterly wind created a small annoying wind chop. Located about three kilometres to the north of Terrigal and three kilometres to the east of Blue Lagoon, Foggy Cave is on the edge of a reef that is about 30 to 32 metres deep. There is a mooring at this dive location, paid for by TUG and Terrigal Diving Services. After tying to the mooring we drop to the bottom where the mooring is attached to a large boulder just off the main reef (not the mooring is now on top of the reef).

    Foggy Cave
    A drawing of Foggy Cave by Clarrie Lawler - used courtesy of Clarrie
    Foggy Cave
    A cross-section of the cave also by Clarrie Lawler - used courtesy of Clarrie

    At the cave, the reef drops from about 32 metres to 36 metres at the edge and then goes in a straight drop to 39 metres. The floor here is a sandy bottom interspersed with large rocks and boulders. The wall is quite shear and in fact overhangs to form a wave-like structure. The main wall here runs south to north and then turns to run west to east. Foggy Cave itself is in the corner where the wall changes direction.

    The cave extends back about 15 metres or so and is quite wide (say 10 metres for most of its length). It is not very high, may be two metres, as there is a copious amount of sand on the floor. Christian told me that the cave used to be a lot deeper but over the years it has filled with sand. The bottom is not too silty but care still needs to be taken to avoid stirring up the finer material. There are some nice small gorgonias on the roof of the cave and just outside.

    After examining the cave, we followed the overhanging wall to the south. There are more gorgonias, some especially colourful (red, green, yellow, mauve etc) on the wall and ceiling. The sponge life along here is also excellent, very prolific and colourful. The reef runs for 30 metres before turning to the west. There are some larger "bommies" out off the main reef and these are also quite interesting. Along the edge there are many nooks and crannies, sometimes home to fish like eastern blue devils. There are luderick and red morwong on and above the rocks and many large black reef leatherjackets hugging the wall.

    Foggy CaveFoggy Cave
    Kelly inside Foggy CaveOutside Foggy Cave, looking back at the cave

    The wall has a couple of small "inlets" before turning to the north. This is a sort of gutter that goes to a deadend. Just before it starts to turn back to the west and then south, there is a very small wall on top of the reef. We followed this wall across the top of the reef back to the east and soon come back to a spot above Foggy Cave. Note that the mooring is now located on a rock just at the point where the gutter and the small wall meet. Now you follow this wall to the north to the main wall and cave.

    We still have a few minutes to spare (this is, of course, a decompression dive) so we follow the wall to the east from the cave before returning to the mooring. We ascend after a great dive, extremely pleased with not only the weather conditions, but happy with the fish and marine life. The water conditions have also been favourable, with 15 metre visibility although the water was a bit cool at 15°C.

    All in all, an excellent introduction for me to reef diving on the Central Coast proper.

    Many thanks to the committee and membership of Terrigal Underwater Group for inviting me to address their meeting and to experience their local diving. A special thanks to Christian Gerzner for providing me with accommodation for the night and for arranging everything.

    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!