The Bluff is a temperate diving area near Victor Harbor on South Australia's Fleurieu Peninsula, facing the Southern Ocean. Water temperatures range from the low teens in winter up to around twenty degrees in the warmest months, and a thick wetsuit is necessary throughout the year. The five sites span reef, wall, canyon, seagrass, and drift diving, ranging from the shallow boulders at the shore to depths of forty metres at sites like Boulders. Exposure to southerly winds is a real constraint here; the research notes that conditions are best on calm days or with northerly winds, and several sites carry surf, surge, and rip hazard warnings. Species recorded include eagle rays, bluespotted fantail rays, epaulette sharks, fiddler rays, long-nosed fur seals, and wrasses. The research also identifies leafy sea dragons among the site fauna, hiding in weed and rocky reef areas.
Monthly water temperature across The Bluff's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Temperatures sit in the low to mid-teens for much of the year and warm toward twenty degrees only in summer. Winter can bring better visibility at some sites when conditions are settled. Southerly swells regularly affect access, so checking forecasts before committing to exposed sites like Boulders is essential.
Water temperature around The Bluff ranges from about 14°C in July to 20°C in January, based on satellite sea-temperature data for its dive sites.
In the warm season (about 20°C) a 5mm suit is comfortable in The Bluff; in the coldest months (about 14°C) step up to a 7mm or semi-dry suit.
Fin maps 5 sites in The Bluff (5 scuba diving sites and 3 snorkelling spots, with some suited to both).
4 more sites to explore
