Meet the site
Nepean Reef is the rock at the very tip of Point Nepean, the eastern jaw of The Rip, and it carries two twentieth-century wrecks that the Scuba Doctor guide lists together under the reef and separately by name. The Parks Victoria divers' guide places the SS Time 'midway along the northern side', dominated by 'two huge boilers lying in the middle of the shipwreck remains', and the Campbell 'at the extreme western end, under and just to the north of Campbell Rock'.
The Time was a steel cargo steamer of 3,322 tons, 104 m long, built at Sunderland in 1913. Inbound from Sydney under Captain William McClenaghan with 41 crew, she strayed into the red sector of the Lonsdale light and at 3.10 am on 26 August 1949 drifted onto Nepean Reef. The Queenscliff lifeboat took off her whole crew by that evening. She stood on the reef as a landmark for more than ten years before being blasted – partly, the listing notes, for a film – and her wreckage is now scattered over a wide area, the two boilers the only substantial pieces. The Campbell was a 135-ton Norwegian-built steel whale-catcher of 1911; her steering failed on a passage from Sydney to Melbourne and on 13 June 1914 she struck Corsair Rock at 8 knots and was carried onto the reef. All her crew survived in large seas; the only casualty was the captain's terrier.
Both wrecks lie in 1–9 m on a reef that the ebb pours over at several knots and that breaks in any swell. The guide's advice is to dive from a boat at the last of the ebb and early flood so that the pick-up is inside the Heads rather than out to sea, and only in extremely calm conditions. Kelp and coralline algae cover the plates and boilers, crayfish and abalone live in the wreckage, and sweep, wrasse and seals work the reef. It is a site for experienced divers with a knowledgeable skipper, dived rarely and of interest mainly for its history; both are protected historic shipwrecks.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Nepean Reef (Time and Campbell wrecks) is recorded as Wreck in Port Phillip Heads. The listed access is boat. Confirm the actual meeting point, route and permission to visit; a map pin does not establish any of these.
Topics flagged by the stored research
These are questions prompted by the existing notes, not a verified or complete hazard assessment.
- Current and timing
- Ask how the operator assesses the current window for the actual route. Historical tide notes are not a departure instruction.
- Other water users
- Ask about vessel activity, exclusion areas and the agreed surface arrangements.
- Water movement
- Ask how swell and local exposure affect the proposed entry, exit and route.
Historical access notes exist for this record, but have not been independently verified for current use. Request current directions from the operator or site manager rather than following an old entry description.
Questions, answered
Is Nepean Reef (Time and Campbell wrecks) suitable for my certification?
The record lists Open Water. That does not establish suitability for every route or day. Share your training, recent experience and equipment needs with the operator and ask about the specific proposed dive.
Can I book Nepean Reef (Time and Campbell wrecks) through YouDive?
YouDive is an independent research directory. Contact an operator directly to confirm whether it currently runs the trip, the inclusions and the booking terms.
What you might see
Kelp, coralline algae, southern rock lobster, abalone, silver sweep, bluethroat wrasse, zebrafish, Australian fur seal
Location
Reef at the tip of Point Nepean just outside Port Phillip, holding the wrecks of the steamer Time (midway along the northern side, two boilers) and the whaler Campbell (at the western end under Campbell Rock); 82 m from Trimix Corner. GPS marks are known to be inaccurate.
Before you make plans
Conditions, access and operator schedules can change. This is a location guide, not a dive plan. Ask a local operator about current conditions and suitability for your training and experience.
Sources & further reading
scubadoctor.com.auscubadoctor.com.auscubadoctor.com.auscubadoctor.com.auparks.vic.gov.auRecord updated 26 Sept 2026. Source claims are being reviewed.


