Australia · Brisbane and Moreton Island (Mulgumpin) · Gold Coast
Flat Rock - Shark Alley is an advanced boat dive known for seasonal grey nurse (
Flat Rock - Shark Alley is an advanced boat dive known for seasonal grey nurse (
Flat Rock - Shark Alley is a deeper boat dive on an exposed reef system off southeast Queensland, best known for seasonal grey nurse shark encounters. The site runs along a narrow alley between reef sections, creating a more purposeful reef route than a broad, casual drift. It is primarily aimed at advanced scuba divers because conditions, distance from shore, and wildlife focus all demand a higher comfort level. Planning should be conservative, with attention to boat access, depth awareness, and changing offshore conditions.
Site Conditions
Safety Notes
Best suited to experienced divers who are comfortable with offshore boat dives and close wildlife encounters. Keep awareness high around depth, buoyancy, and changing conditions.
Community notes to help plan your visit.
Scuba Diving
A boat-accessed reef dive with a narrow alley profile and a stronger emphasis on advanced buoyancy, gas planning, and situational awareness.
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)
Advanced pinnacle dive on the western side of Flat Rock with notable shark and m
A shallow Flat Rock reef site focused on smaller marine life.
Drift-style reef dive with a small cave and chances for larger pelagic sightings