Meet the site
Barwon Bluff South is the ocean face of the Bluff, where the older sandstone that underlies the basalt cap has been carved by Bass Strait swell into a pincer-shaped reef that juts into the sea at the eastern end of the long sweep of Thirteenth Beach. This is the side that Parks Victoria's description of sandstone arches and colourful sponge gardens refers to, and it is the richer and more dramatic of the two Bluff dives. From the shelf the reef drops through ledges and gutters to 6-9 m along its outer edge, with overhangs and small arches cut into the soft rock and thick forests of giant kelp and crayweed on the tops that sway with every surge. The intertidal zone is dense with limpets, whelks, barnacles and mussels, and below the kelp the shaded rock carries sponges, sea tulips, feather stars and sea slugs in quantity. The fish are the Victorian open-coast set: Western blue groper cruising the gutters, leatherjackets of several species, magpie perch, boarfish, herring cale and zebrafish in the kelp, Port Jackson sharks tucked under the ledges and smooth stingrays and giant rays on the sand at the base of the reef. Somewhere under the sand 390 m to the south lies the Earl of Charlemont, the immigrant ship wrecked here in 1853; it is buried and rarely visible. The dive is exposed. Any south-westerly swell breaks across the shelf, surge works through the gutters and the entry becomes dangerous, so this is a site for the flattest days, most reliably in autumn and early winter after a run of northerlies, and for divers comfortable with kelp and surge; The Scuba Doctor's remark that for the experienced the swell adds to the challenge and beauty is an honest description of the trade. On such a day it is one of the best shore dives within an hour and a half of Melbourne.
What you might see
Western blue groper, leatherjackets, magpie perch, boarfish, herring cale, zebrafish, Port Jackson sharks, smooth stingrays, giant rays, sea slugs, feather stars, sea tulips, sponges, limpets, whelks, mussels, giant kelp, crayweed, bull kelp
Location
Southern (Bass Strait) side of the Bluff at Barwon Heads, a pincer-shaped sandstone reef jutting into the sea at the eastern end of Thirteenth Beach, with kelp forests and the buried wreck of the Earl of Charlemont 390 m to the south.
Facilities nearby
Free car park and toilets at the Bluff; cafes and shops in Barwon Heads village; nearest air fills Bay City Scuba or Dive Victoria Group
Before you make plans
Conditions, access and operator schedules can change. This is a location guide, not a dive plan. Ask a local operator about current conditions and suitability for your training and experience.
Sources & further reading
scubadoctor.com.auparks.vic.gov.auRecord updated 26 Sept 2026. Source claims are being reviewed.