An exposed rocky reef with a swim-through cave and a reputation for being a more
Shag Rock - Coral Gardens is an exposed rocky reef off the Brisbane and Moreton Island area, reached by a short boat ride from the beach launch area. It is described as a more protected local option when other nearby sites are in worse condition. The dive focuses on reef structure on both sides, with a swim-through cave linking the areas. That overhead feature makes it a better fit for divers who are comfortable with more committed reef navigation.
Depth range, seasonality, and planning context.
Typical Conditions
Often used as a fallback local site when conditions at other nearby reefs are less favourable.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
The site includes a swim-through cave, so divers should be comfortable with overhead environments and avoid entering if conditions or experience are not suitable.
Community notes to help plan your visit.
Scuba
Both sides of the reef can be explored on scuba, with a swim-through cave connecting the areas.
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Shag Rock - Coral Gardens.
Directional shelter context for incoming swell.
Community dive logs and visit reports for this site.
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Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Brisbane and Moreton Island (Mulgumpin) Diving Guide | DiveJourney | Brisbane is the easiest big-city gateway to the sand islands and reefs of Moreton Bay. A short ferry ride puts you on Moreton Island (Mulgumpin), where the famo | Brisbane and Moreton Island (Mulgumpin)
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