This dive site features a spectacular limestone pinnacle rising from around 30 meters, creating a complex landscape of caves, ledges, and swim-throughs. It is renowned for its unique topography which provides a habitat for a high diversity of marine life. The structure itself is the main attraction, offering an exciting and varied dive profile.
Challenger Rock
Limestone pinnacle with caves, swim-throughs, and diverse marine life.
Boat Access
18m Avg Depth
30m Max Depth
About this dive site
DivingFreedivingSnorkeling
Site Ratings
Big Marine Life Good
Macro Marine Life Very Good
Landscape Quality Excellent
Water Visibility Very Good Viz
Plan Your Visit
cavernswim-throughrock formationwide anglesea lionaustraliaperth
Marine Life
West Australian Dhufish
Boarfish
Australian Sea Lion
Sponge
Crayfish
Soft Gingerbread Hem Star
Western Blue Devil
Nudibranch
Australian Giant Cuttlefish
Things to Note
Difficulty:
Intermediate
Requires good buoyancy for swim-throughs and managing depth and surge.
Hazards:
currentdepthboat trafficsurge
Current Strength:
Variable
Nearby Dive Sites
Explore other dive sites in the area
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Shallow shore dive famous for its leafy seadragons.
Australia, Perth Rottnest Island Marine Reserve
Limestone reef with spectacular caves and swim-throughs off Perth.