Dive-site story
Located off the coast of Bate Bay and Port Hacking near Cronulla, Osborn Shoals is a submerged sandstone reef system characterized by rolling rocky ridges, kelp gardens, and deep gutters. The offshore structure acts as an oasis for temperate marine life, attracting pelagic fish alongside resident bottom dwellers resting in the crevices.
Extensive sandstone gutter networks and low-profile overhangs
Frequent encounters with resting wobbegongs and aggregation of seasonal Port Jackson sharks
Dense kelp cover harbouring temperate species such as eastern blue groper and nudibranchs
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Late summer and autumn generally provide warmer water and consistent visibility before the winter westerlies set in.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Eastern Blue GroperAchoerodus viridis | Common | ||||||||||||
| Port Jackson SharkHeterodontus portusjacksoni | Seasonal | ||||||||||||
| Spotted WobbegongOrectolobus maculatus | Common | ||||||||||||
| Australian Giant CuttlefishSepia apama | Seasonal | ||||||||||||
| Weedy SeadragonPhyllopteryx taeniolatus | Rare |
Marine forecast
