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Queensland · Pinnacle/Bommie

Smiths Rock

Granite pinnacles with swim-throughs and caverns on the rock that sank the Aarhus, St Paul and Marietta Dal.

Brisbane & Moreton BayBoat (day trip)
YouDive mascot illustration; not a photograph or site map

Mascot illustration — not a photograph or site map.

Depth
6–21 m
Certification
Advanced Open Water
Access
Boat (day trip)
Dive type
Pinnacle/Bommie
Region
Brisbane & Moreton Bay

Depth describes the recorded site range, not a recommended dive depth. Certification is a recorded recommendation; suitability depends on your planned route, training, experience and current conditions.

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Location & map

Approximate area

Interactive map provided by Google Maps. If the map does not load, use the larger-map link.

Meet the site

Smith Rock is a cluster of granite pinnacles between Cape Moreton and Flinders Reef that has claimed at least three ships, and today it is one of the most rewarding reef dives off the northern end of Moreton Island. The pinnacles rise from about 21 m to within 6 m of the surface and are split by gutters, swim-throughs and small caverns, giving divers plenty of structure to explore in a single dive. Scattered ship debris from the wrecks that struck the rock lies among the boulders. Because the rock is exposed to swell and to the strong tidal stream that sweeps past the cape, it is less often visited than Flinders Reef, and the payoff is abundant fish. Crayfish are common in the cracks, and the regional guides mention large marine species, shovelnose rays and sharks, along with schools of reef and pelagic fish that gather in the current. Colourful sponge and coral growth covers the granite. Nigel Marsh describes it as a colourful reef with caves and canyons, dropping to about 30 m on the surrounding sand. The rock's history adds to the dive. The iron barque Aarhus struck it in 1894 and sank within minutes; the French steamer St Paul hit it in 1914 and went down in deep water a kilometre to the east; and the freighter Marietta Dal ran aground on it in 1950, scattering tractors and machinery. All three wrecks are dived from the same area, and many divers combine Smith Rock with one of them. Visibility of 20-30 m is common in winter. The site suits advanced divers who are comfortable timing a dive around slack water and handling current if the timing slips.

Research this site before booking

Smiths Rock is recorded as Pinnacle/Bommie in Brisbane & Moreton Bay. The listed access is boat (day trip). 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 Smiths Rock suitable for my certification?

The record lists Advanced 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 Smiths Rock 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

Crayfish, shovelnose rays, wobbegongs, sharks, schooling pelagics (trevally, kingfish), reef fish, sponges and corals

Location

Granite pinnacles breaking near the surface between Cape Moreton and Flinders Reef, a notorious historic shipping hazard with three wrecks nearby.

Facilities nearby

Departure facilities at Manly or Scarborough boat harbours.

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.

Record updated 26 Sept 2026. Source claims are being reviewed.

More records in this region

Grouped by directory region, not distance or equivalent difficulty.

Operators linked to this site

These links are recorded in the directory. Confirm current trips and site access directly.