Conditions & tides
Scored by DiveConnect's site-physics model
Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.
Dived here today? How were conditions vs. what we showed?
About this site
4 Mile Reef lies within Geographe Bay, a wide, sheltered bay on the south west coast of Western Australia between Bunbury and Cape Naturaliste. The bay is known for calm conditions relative to the exposed coastline nearby, and its reef systems sit offshore from the surrounding towns such as Dunsborough and Busselton.
AI overviewMarine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Blackspotted WrasseAustrolabrus maculatusReported here · unconfirmed
Western TalmaChelmonops curiosusReported here · unconfirmed
Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
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