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Community guide noting Moon Island among the best-known grey nurse sites.
Dive Spot Guide•
Moon Island
Moon Island: a boat dive with arches, caves, and sharks
Boat-accessed arch and cave site with rocky shelves and coral beds; winter brings clearer water and grey nurse sharks.
About Moon Island
Moon Island is a boat-accessed offshore rock off Swansea with arches, caves, rocky shelves, and driftable rock faces. Coral beds and mixed reef life make it a versatile dive, and winter is the classic season for grey nurse sharks, with seals, weedy seadragons, nudibranchs, and eels also turning up. It is a compact but varied NSW dive that works well as a guided circuit when conditions are calm.
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Research Estimate At Moon Island
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 12m
AccessChallenging entry effort
CoralHealthy coral
Aquatic LifeExceptional variety
FacilitiesBasic facilities
Crowd / PopularityQuite busy
CurrentLight current
SurgeLight surge
Where Is Moon Island?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
Moon Island Planning Details
Depth range, seasonality, and planning context.
Reported Depth
10m - 23m
Depth Note
Arch and Temple circuits commonly run around 10-23 m, with average depths around 11-14 m.
Best Season
winter
Typical Conditions
Arches, caves, rocky shelves, and drift lines along the rock face; winter water can be very clear.
Safety & Access At Moon Island
Hazards, restrictions, and access requirements.
Key Hazards
Overhead environmentDangerous wildlife
Safety Notes
Caves and swim-through arches add overhead exposure; plan accordingly and avoid entering if not trained and equipped. Grey nurse sharks may be present during winter months.
Access Restrictions
Boat access only; use the Swansea Channel departure and respect Moon Island Nature Reserve rules.
Legal Notes
Moon Island is a nature reserve; follow reserve rules and keep distance from wildlife.
Local Intel For Moon Island
Community notes to help plan your visit.
Scuba Diving
A circuit of arches, caves, rocky shelves, and drift lines, with the Arch and Temple among the better-known routes.
Freediving
Only the shallowest rocky shelves are reasonable for expert freedivers; the arch and cave circuit is mainly a scuba route.
Snorkeling
The surface can be scenic, but the main arches, caves, and shark-watching areas are too deep for a useful snorkel.
Wildlife at Moon Island
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Moon Island
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Moon Island
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility12m
Activity
No dive activity logged yet.
