Henrietta and the Diane (shipwreck)

Moderate risk: Blue-ringed octopus

This small but highly venomous octopus can be found in rocky crevices and rock pools. Never place fingers into hidden crevices.

Moderate risk: Snakes

Resident snakes inhabit the coastal vegetation and dunes adjacent to the beach. Avoid walking through long grass or shrubs.

Moderate risk: Storm and weather events

Conditions can change rapidly. Avoid the sanctuary during storms or poor weather. Check forecasts before visiting.

Moderate risk: Variable weather and wind

Port Phillip Bay can turn squally with deteriorating conditions. Wreck site is exposed to winds and choppy seas.

Low risk: Slippery uneven rocks

The sanctuary's exposed rocky reefs and basalt platforms can be extremely slippery when wet. Take care when entering and exiting the water.

Low risk: Remote location

The sanctuary is quite remote with limited facilities. Always inform someone of your plans and expected return time.

Low risk: Shallow reef

Basalt reef extends out over a mile from Point Cook; the wrecks lie on/adjacent to shallow reef in 3–4 m depth. Snorkelers must avoid contact with sharp reef edges.

Low risk: Boat traffic

Located 400 m offshore in an area used by recreational boats. Snorkelers should be vigilant and consider a surface marker buoy.

Low risk: Cold water temperatures

Port Phillip Bay water temperatures range from 10°C in winter to 20°C in summer, requiring a wetsuit year-round.