Meet the site
Bridgewater Bay is a cliff-backed ocean bay on the Blairgowrie back-beach coast, reached by a steep staircase from the end of St Johns Wood Road, and it offers two distinct dives from one beach. To the east, The Bridge is a rock formation with a sea cave and a series of ledges in 4–8 m; to the west, Koreen Point – known to divers as Grahams Reef – runs out and around toward Fowlers Beach as a long reef of gutters and platforms. The Scuba Doctor gives the depth as 4–8 m and rates it Advanced Open Water because of the exposure, not the depth. The rock is the familiar back-beach calcarenite, undercut into ledges roofed with kelp and lined beneath with sponges, bryozoans and jewel anemones, and the fish community is the Bass Strait shallow-reef set: sweep, zebrafish, old wives, magpie perch, boarfish and wrasse over the reef, Port Jackson and draughtboard sharks in the ledges, weedy seadragons in the kelp, rock lobsters and abalone in the holes. The sea cave at The Bridge is a surge zone and should be looked into rather than entered unless the water is glassy. The bay's orientation gives it slightly more shelter than the open beaches either side, and the sandy middle provides a forgiving exit, which makes it one of the more sensible back-beach choices when a marginal day rules out the point sites. The rule remains the same: swell under about 2 m with a long period, light northerly to north-easterly winds, ideally after several days of the same, low tide for entry and an abort if the reef is breaking. Pearses Beach lies 900 m south-east for those working along the coast. Bridgewater Bay suits experienced divers wanting a varied shallow reef with a cave and two directions to explore, and fit snorkellers on flat days; the staircase rules out anyone who cannot carry their gear up a cliff.
Research this site before booking Stored site notes may be historical. These questions highlight gaps without turning old instructions into a current dive plan.
Bridgewater Bay, Blairgowrie is recorded as Reef in Mornington Peninsula. The listed access is shore. Confirm the actual meeting point, route and permission to visit; a map pin does not establish any of these.
Topics flagged by the stored research
These are questions prompted by the existing notes, not a verified or complete hazard assessment.
- Water movement
- Ask how swell and local exposure affect the proposed entry, exit and route.
- Overhead environments
- Ask whether the plan stays entirely in open water. A wreck or cave listing is not permission or training to enter.
Historical access notes exist for this record, but have not been independently verified for current use. Request current directions from the operator or site manager rather than following an old entry description.
Questions, answered
Is Bridgewater Bay, Blairgowrie suitable for my certification?
The record lists Advanced Open Water. That does not establish suitability for every route or day. Share your training, recent experience and equipment needs with the operator and ask about the specific proposed dive.
Can I book Bridgewater Bay, Blairgowrie through YouDive?
YouDive is an independent research directory. Contact an operator directly to confirm whether it currently runs the trip, the inclusions and the booking terms.
What you might see
Weedy seadragon, southern rock lobster, blacklip abalone, Port Jackson shark, draughtboard shark, sea sweep, zebrafish, old wife, magpie perch, long-snouted boarfish, bluethroat wrasse, jewel anemones, sponges, kelp
Location
Ocean bay below cliffs on the Blairgowrie back-beach coast at the end of St Johns Wood Road, with a sea cave and ledges at 'The Bridge' at its eastern end and Koreen Point (Grahams Reef) leading west to Fowlers Beach; 920 m north-west of Pearses Beach.
Facilities nearby
Small car park at the end of St Johns Wood Road; no toilets; Blairgowrie shops; air fills at The Scuba Doctor (Rye).
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.auscubadoctor.com.auscubadoctor.com.auRecord updated 26 Sept 2026. Source claims are being reviewed.