Piccaninnie Ponds Conservation Park protects a globally significant freshwater wetland on South Australia's Limestone Coast. The star attractions are two unique underwater formations formed by spring-fed freshwater rising through limestone: The Chasm (a vertical shaft plunging into darkness) and The Cathedral (a vast underwater cavern with luminous white scalloped limestone walls). Crystal-clear 14°C waters (issued via permit) have historically drawn divers and snorkelers from across Australia. The park also features a coastal walking trail, boardwalk overlook, and interpretive displays. Note: snorkeling/diving is currently suspended due to an algae outbreak recovery program.
Piccaninnie Ponds Conservation Park (Piccaninnie Ponds)
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Poor conditions. Stay out today.
Showing last known conditions
Wave Height 2.2 mSwell Period 11 sWind Speed 17 knPrecipitation 7.9 mmTidal Phase slack
Last evaluated
The spot
Community-maintained
Community contribution: submitted by Daniel
Know before you go
Logged by the community, confirmed by mods
Moderate risk: Limited visibility in caverns
Silt and fine sediment can be stirred up inside The Cathedral and The Chasm, reducing visibility to near-zero and disorienting snorkelers.
Moderate risk: Filamentous algae outbreak
Park is currently closed for snorkeling/diving to allow regeneration of aquatic vegetation following an outbreak of filamentous algae.
Low risk: Cold water temperature
Spring-fed ponds maintain a constant 14°C (57°F) year-round, creating risk of hypothermia without adequate thermal protection.
Low risk: Strong freshwater currents at springs
Pressurised freshwater rising through submerged limestone conduits can create unexpected upwelling currents near fissures and cavern entrances.
Wildlife Guide
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Gallery
1 photo from the community
Getting in
Shore entry
Entry
Located 32 km south-east of Mount Gambier on the Limestone Coast of South Australia (482 km south-east of Adelaide). Access via Piccaninnie Ponds Road off the Riddoch Highway.
Parking & facilities
Car parking available at the park entrance near the picnic area.
toiletsparkingpicnic_tablesdrinking_watershowers
Snorkeling/diving requires a permit (currently not being issued). Park entry is free. Bookings: [email protected]
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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