A natural rock reef ledge shelters this tidal lagoon from the Southern Ocean, creating a calm, crystal-clear pool teeming with reef fish. Accessible from the Golden Island carpark via a boardwalk and a 200-metre beach walk around the point at low tide, the lagoon offers a protected snorkel haven with brilliant visibility. Keep an eye out for blue gropers (green as juveniles, brilliant blue as adults), along with colourful reef fish in the shallow, sun-warmed waters. Note that the lagoon is not accessible in winter due to rough conditions.
The Lagoon (Coffin Bay NP)
IntermediateMAYBE
MAYBE
Fair. Experienced snorkellers only.
Showing last known conditions
Wave Height 0.2 mSwell Period 12 sWind Speed 1.4 knPrecipitation 9.0 mmTidal Phase slack
Last evaluated
DANGER: Explicit Risks Present
The Lagoon (Coffin Bay NP) has hazards marked as danger. Entering the water here means you may face serious risks to your personal safety.
- Shark presence danger
Great white and bronze whaler sharks have been spotted in the area near Golden Island, working together to round up salmon schools.
The spot
Community-maintained
Community contribution: submitted by Daniel
Know before you go
Logged by the community, confirmed by mods
High risk: Shark presence
Great white and bronze whaler sharks have been spotted in the area near Golden Island, working together to round up salmon schools.
Moderate risk: Tide-dependent access
The lagoon is only reachable at low tide — high tide or winter swells can make the reef ledge impassable. Not accessible in winter.
Low risk: Ocean swell surge
Southern Ocean swells can break over the reef ledge, creating surge and strong currents near the entry point in marginal conditions.
Wildlife Guide
No wildlife notes for this spot yet.
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Getting in
Shore entry
Entry
From Port Lincoln, drive 50 km west on Flinders Highway to Coffin Bay township, then continue into Coffin Bay National Park. Park at the Golden Island carpark, take the boardwalk down to the beach, and walk about 200 metres around the point to the right (west side) at low tide.
Parking & facilities
Golden Island carpark — the main parking area near the boardwalk leading to the lagoon.
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Vehicle entry: $14.40 per vehicle (fees may be waived seasonally; check Parks SA website).
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About this data
- Conditions last evaluated
- Spot data last updated
- Data sources
- Open-Meteo (marine & weather conditions), tide predictions via UTide, community contributors (descriptions, hazards, marine life).
- License
- Spot content licensed under CC BY-SA 4.0. How's the Spot is open source.
Weather & swell ┬╖ Open-Meteo marine & weather APIs Tides ┬╖ UTide harmonic analysis Sea & safety ┬╖ community reports