Rottnest Island (Parker Point Snorkel Trail)

Low risk: Sharp limestone reef edges

The underwater trail follows a limestone ridge with sharp edges — wear reef shoes or fins and avoid touching the coral.

Low risk: Rocks at beach entry

The beach at Parker Point is rocky with seaweed — take care entering and exiting the water.

Low risk: Boat traffic near sanctuary boundaries

While the marine sanctuary itself is protected, boat traffic occurs in the surrounding channels; stay within the marked trail area.

Low risk: Outgoing tide current

Tidal flow can increase along the limestone ridge, especially on an outgoing tide, potentially pushing snorkellers away from the trail.

Low risk: Sharp limestone reef

The underwater limestone ridge is sharp and abrasive; exposed skin can be cut easily when kneeling or standing.

Low risk: Marine stingers (summer)

Box jellyfish and other marine stingers can be present during the warmer months (November to April).

Low risk: Sharp reef limestone

The shallow reef platform has sharp limestone edges that can cause cuts and abrasions. Wear reef shoes or fins.