Cottesloe Eco Shark Barrier

Low risk: Boat traffic outside shark net

Vessels operate beyond the eco‑barrier; swimmers outside the net should remain vigilant.

Low risk: Limpets and barnacles on groyne

Sharp encrusting growth on the groyne rocks can cause cuts.

Low risk: Strong south-westerly sea breeze

Afternoon sea breezes can whip up chop and reduce visibility, especially in summer.

Low risk: Variable visibility

Visibility fluctuates with swell and wind; murky after storms or large swell.

Low risk: Seasonal barrier removal

The Eco Shark Barrier is only installed between October and March (spring to autumn). Outside these months, the protected enclosure is absent and swimmers face open ocean conditions.

Low risk: Sharks inside the barrier

Bronze whaler sharks have occasionally been spotted inside the barrier enclosure, leading to temporary beach closures. While extremely rare, it's a known hazard.

Low risk: Outgoing tide current

As the tide retreats, water can flow out around the reef edges, creating a gentle current that may pull inexperienced swimmers away from the shore entry point.

Low risk: Sharp limestone reef

The limestone reef platform has sharp edges and crevices that can cause cuts and scrapes if swimmers stand or stumble, particularly at low tide.

Low risk: Boat traffic

During warmer months increased boating activity near the reef zone requires vigilance, though the Eco Shark Barrier provides some separation.