This dive site is a popular and accessible shore dive known for its beautiful limestone reef system. Divers can explore small swim-throughs and overhangs created by the unique geology. It is particularly well-regarded for its abundance of macro life, including various species of nudibranchs, shrimp, and cuttlefish.
Castle Bay
Sheltered, easy shore dive with interesting limestone formations.
Shore Access
6m Avg Depth
10m Max Depth
About this dive site
DivingFreedivingSnorkeling
Site Ratings
Big Marine Life Fair
Macro Marine Life Very Good
Landscape Quality Very Good
Water Visibility Very Good Viz
Plan Your Visit
shore divebeginner friendlymacro photographylimestone reefswim-throughnudibranchcuttlefishaustraliadunsborough
Marine Life
Weedy Seadragon
Octopus
Sparsely-Spotted Stingaree
Port Jackson Shark
Old Wife
Western Blue Devil
Nudibranch
Australian Giant Cuttlefish
Things to Note
Difficulty:
Beginner
Shallow, protected bay with easy shore entry, ideal for training.
Hazards:
boat trafficmarine life
Current Strength:
Mild
Nearby Dive Sites
Explore other dive sites in the area
Australia, Dunsborough Ngari Capes Marine Park
Calm, shallow shore dive perfect for beginners and macro.
Australia, Shark Bay Shark Bay Marine Park
Shallow, clear, hypersaline lagoon perfect for snorkeling and beginners.
Australia, Sydney Sydney Marine Park
Historic shipwreck offering impressive structure and dense marine life.