Wall Dive | Boat access
Depth: 18 m (59 ft) to 65 m (213 ft)
Level: Advanced Open Water and beyond.
Nepean Wall is part of a large boomerang shaped trench which runs East to West just outside Port Phillip Heads on the Point Nepean side. To go over the wall you swim South from the shot. Descending to your desired depth you can swim in either direction along the wall, but it is important that you return to the shot for your ascent as the current here turns very quickly. It is also a good idea to keep your bottom time shorter on this dive.
Nepean Wall drops dramatically on the north side to 65 metres. The trench (Entrance Deep) extends southwards out of The Heads. While the maximum depth is 65 metres, the best diving is in the 18–30 metre range. There are large vertical drops, plus huge caves and undercuts. You can see prolific marine life, both reef and pelagic fish.
This dive is only done on the ebb turning to flood so that at the end of your dive the current will bring you back into Port Phillip. The wall along here is amazing with lots of soft coral and sponges but slightly different coverage than the Lonsdale Wall side. The odd Crayfish is collected here too. The fish life is amazing and this quite often brings Seals into the area.
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.
Divers have the opportunity to catch Southern Rock Lobster (aka Crayfish) at this dive site. Remember your catch bag, current Victorian Recreational Fishing Licence, rock lobster measure, and cray tags. Once you get back to the dive boat, or shore, make sure you clip the tail and tag your Crayfish as per Fisheries requirements. Please abide by all current fishing regulations if you intend to catch crays. See article-catching-crayfish for practical cray hunting advice from The Scuba Doctor, plus melbourne-cray-dives for a list of other crayfish dive sites near Melbourne. For tips on cooking your Crays, please see article-cooking-crayfish.
Traditional Owners — This dive site is in the traditional Country of the Boon Wurrung / Bunurong people of the Kulin Nation. This truly ancient Country includes parts of Port Phillip, from the Werribee River in the north-west, down to Wilson's Promontory in the south-east, including the Mornington Peninsula, French Island and Phillip Island, plus Western Port. We wish to acknowledge the Boon Wurrung 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.
Nepean Wall Location Map
Latitude: 38° 18.035′ S (38.300583° S / 38° 18′ 2.1″ S)
Longitude: 144° 38.357′ E (144.639283° E / 144° 38′ 21.42″ E)
Datum: WGS84 | Google Map
Added: 2012-07-22 09:00:00 GMT, Last updated: 2022-05-08 00:04:28 GMT
Nearest Neighbour: Trimix Corner, 28 m, bearing 338°, NNW
Depth: 18 to 65 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.