Giant Australian Cuttlefish Breeding
high
May - July
SA
Every winter, the world's largest known aggregation of giant Australian cuttlefish gathers in the shallow rocky reefs off Point Lowly, near Whyalla. Males dramatically outnumber females and compete in extraordinary displays of rippling colour, body posture, and pattern — visible in as little as one metre of water. This is one of the most accessible and spectacular wildlife spectacles in Australia: snorkellers can observe from directly above, while divers experience the aggregation from within. Families with older children can wade in at low tide and watch from the shore. The event has no direct equivalent anywhere else in the world.
Stony Point, 30 km north of Whyalla via Lincoln Highway then Point Lowly Road. Free public car park and toilet block at the launch ramp. Shore access is direct — walk 50 m from the car park to the water. Guided snorkel and dive tours operate from Whyalla town centre (Whyalla Diving Services). Glass-bottom boat tours also available, departing from the Stony Point ramp.
What affects timing
Timing varies with water temperature. Colder winters may delay the aggregation by 2–3 weeks. Peak numbers typically occur in mid-June to early July. Aggregation disperses rapidly as water warms.
Do not enter the water during peak aggregation without a licensed dive guide. If snorkelling independently, maintain respectful distance and do not touch or chase animals. Strong currents can occur at Stony Point.
Eyre & Far West
Interactive map coming soon