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North Wall Corner

Wall Dive Wall Dive | Boat access Boat access

Advanced Open Water Rated Deep Rated Inside Port Phillip Marine Park - No Fishing Reef Dive Site Slack Water Technical Rated

Depth: 19 m (62 ft) to 66 m (217 ft)

North Wall Corner Dive
North Wall Corner Dive
© Ian Scholey

North Wall Corner is an amazing dive, situated at the northern end of the Lonsdale Wall in Port Phillip. Lonsdale Wall runs south to north, and at this point, it turns and runs west to east. At North Wall Corner the current has scoured quite a deep area. The walls tower vertically here with amazing splits and overhangs sheltering an amazing variety of soft coral and sponges.

The top of the wall is around 19 metres in depth and slopes down to the bottom at 66 metres. Thus North Wall Corner is a dive for the experienced diver as the maximum depth of 66 metres is out of range for the average diver.


Diving North Wall Corner on Redboats | © Matt Testoni

Southern Blue Devil at North Wall Corner
Southern Blue Devil at North Wall Corner
© Ian Scholey

As you descend there is a maze of overhangs, caves, and smaller crevices that support a vast array of marine life. These crevices are the home of many Southern Blue Devil and blue groper as well as an endless cross-section of temperate invertebrates.

It must be noted that part of this site lies within the Port Phillip Heads Marine National Park, whilst the remainder lies in the shipping channel. It is illegal to anchor in a shipping channel, so divers must be aware of any shipping movements and plan the dive accordingly.

Generally this dive is done on Slack Water at the end of the Flood so that it's at its clearest. For this dive, it is best to swim along the East-West wall first and then return onto the North-South wall before the current picks up.

The Rip & Tides Warning: Always keep an eye on sea conditions throughout any shore or boat dive within "The Rip" (aka "The Heads"). This is a dangerous stretch of water, where Bass Straight meets Port Phillip, which has claimed many ships and lives. Please read the warnings on the web page diving-the-rip before diving or snorkelling this site.

Lonsdale Wall

This dive site is one of many on Lonsdale Wall, located just inside The Heads on the Lonsdale side of Port Philip — one of Australia's premier dive locations. Lonsdale Wall is one side of an underwater canyon formed by the old Yarra River as it flowed out to sea through the plains, carving steep-walled edges out of soft rock sides. Between the end of the last Ice Age around 8000 BCE and around 6000 BCE, the sea-level rose to drown what was then the lower reaches of the Yarra River. Thus the canyon formed by the river near what is now The Heads, or The Rip, was flooded creating the Lonsdale Wall, North Wall and Nepean Wall areas. Lonsdale Wall extends for one kilometre, providing many spectacular dive sites. An almost vertical drop characterises Lonsdale Wall with the wall starting as shallow as 8 m (26 ft) metres deep in places and sometimes dropping down to well over 60 m (197 ft) deep. See also, Port of Melbourne Rip Map — Oblique seabed image of The Heads produced by hydrographic surveys.

Port Phillip Heads Marine National Park

This site lies in the Port Phillip Heads Marine National Park. The park is made up of six separate marine areas around the southern end of Port Phillip: Swan Bay, Mud Islands, Point Lonsdale, Point Nepean, Popes Eye, and Portsea Hole.

Thirty-one of the 120 shipwrecks known to have occurred within a 10 nautical mile radius of Port Phillip Heads are thought to be within the Port Phillip Heads Marine National Park in Point Lonsdale and Point Nepean.

Aboriginal tradition indicates that the Bellarine Peninsula side of the Port Phillip Heads Marine National Park is part of Country of the Wathaurung people, and the Mornington Peninsula side, including Mud Islands, is part of Country of the Boon Wurrung people.

See also, Parks Victoria: Port Phillip Heads Marine National Park,
Park Note: Port Phillip Heads Marine National Park,
Port Phillip Heads Marine National Park - Map,
Divers Guide - Port Phillip Heads Marine National Park,
Port Phillip Heads Marine National Park Identification Booklet, and
Taxonomic Toolkit for the Marine Life of Port Phillip Bay.

Port Phillip Heads Bathymetry
Port Phillip Heads Bathymetry
Source: Parks Victoria
Point Lonsdale Bathymetry
Point Lonsdale Bathymetry
Source: Parks Victoria
Point Nepean Bathymetry
Point Nepean Bathymetry
Source: Parks Victoria
Popes Eye Bathymetry
Popes Eye Bathymetry
Source: Parks Victoria
Portsea Hole Bathymetry
Portsea Hole Bathymetry
Source: Parks Victoria
Mud Islands Bathymetry
Mud Islands Bathymetry
Source: Parks Victoria

You are not permitted to carry a spear gun while snorkelling or scuba diving in Port Phillip Heads Marine National Park.

Wathaurong (Wadda-Warrung) country
Wathaurong (Wadda-Warrung) country

Traditional Owners — This dive site is in the traditional Country of the Wathaurong (Wadda-Warrung) people of the Kulin Nation. This truly ancient Country includes the coastline of Port Phillip, from the Werribee River in the north-east, the Bellarine Peninsula, and down to Cape Otway in the south-west. We wish to acknowledge the Wathaurong as Traditional Owners. We pay respect to their Ancestors and their Elders, past, present and emerging. We acknowledge Bunjil the Creator Spirit of this beautiful land, who travels as an eagle, and Waarn, who protects the waterways and travels as a crow, and thank them for continuing to watch over this Country today and beyond.

 

North Wall Corner Location Map

Latitude: 38° 17.407′ S   (38.290117° S / 38° 17′ 24.42″ S)
Longitude: 144° 38.010′ E   (144.6335° E / 144° 38′ 0.6″ E)

Datum: WGS84 | Google Map
Added: 2012-07-22 09:00:00 GMT, Last updated: 2022-04-06 21:13:49 GMT
Source: Divers Guide - Port Phillip Heads Marine National Park
Nearest Neighbour: The Swim Through, 36 m, bearing 272°, W
Port Phillip Heads Marine National Park.
Depth: 19 to 66 m.
Dive only on: SWF, SWE.



DISCLAIMER: No claim is made by The Scuba Doctor as to the accuracy of the dive site coordinates listed here. Should anyone decide to use these GPS marks to locate and dive on a site, they do so entirely at their own risk. Always verify against other sources.

The marks come from numerous sources including commercial operators, independent dive clubs, reference works, and active divers. Some are known to be accurate, while others may not be. Some GPS marks may even have come from maps using the AGD66 datum, and thus may need be converted to the WGS84 datum. To distinguish between the possible accuracy of the dive site marks, we've tried to give each mark a source of GPS, Google Earth, or unknown.

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