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 My Yachting Adventures 4WD Trips Weather Search 10 December 2022 04:01
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
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.
  • Login
    Username

    Password



    Forgotten your password?
    Request a new one here.
    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
    "Marley Point has an excellent three way swim-through"
    North Head Bommie
    Michael McFadyen's Scuba Diving – Lord Howe Island – North Head Bommie

    The south-western side of LHI contains the lagoon and the barrier reef which runs from the northern end of the island to the southern end. The lagoon has a few entrances, at least two at the southern end and one at the northern end. The western side of the island is suitable to be dived in easterly, northerly and north-easterly winds when here will be fairly protected.

    The bommie is located just south of the northern head of LHI, perhaps 70 metres off the land. The site is also close to North Passage, the northern entrance to the lagoon. Its actual location is GPS 31°31'25.921"S 159°02'20.983"E using WGS84 as the datum (this is about 50 metres to the west of the bommie). The site is about 800 metres north-west of North Passage.

    Lord Howe IslandLord Howe Island
    The first gutterAnother of the gutters

    To do this dive the dive boat anchors off the bommie, the actual location will depend on the wind and current directions. We were anchored on the western side in about 12 metres of water. From here we circumnavigated the bommie in an anti-clockwise direction. The depth drops from 12 metres to 14 metres and then gradually to about 18 metres over the next 10 minutes.

    Once you turn north-east, there are some narrow slits/canyons that run into the reef around the bommie. Along these slits are many overhangs and some small swim-throughs. I saw a few crayfish in these. As you go, you keep turning to the left and end up at the back of the bommie. Here there are some large holes or craters and between sections there are a few porthole type holes that can help you create interesting photographs. The depth here comes up to about 7 to 8 metres.

    Lord Howe IslandLord Howe Island
    The end of the hole behind the bommieThe swim-through from the hole at left

    The cracks and gullies continue all the way back to the boat's anchor, again with some overhangs along the way. The depth drops back to 12 metres along the way. On this dive I saw some sharks, like most other dives at LHI they were Galapagos sharks.

    Once back at the anchor I spent some time shallower near the bommie doing my safety stop here. I also saw quite a few tropical fish species, including many different butterflyfish, some firefish, some leatherjackets and hundreds of one-spot pullers and some few trevally. However, I did not see any nudibranchs.

    Lord Howe IslandLord Howe Island
    A slipper cray above a crayfishKim Dinh looks through one of the port holes

    On my dive in May, I had 21.6°C water and at least 30 metres visibility. A pretty interesting dive site.

    Copyright © Michael McFadyen 1990 to 2022
    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 over 25 years by Michael McFadyen
    without any help from the Australian Dive Industry since 1996!