Little Blue Lake, Natural sinkhole cave in Mount Schank, South Australia
The Little Blue Lake forms a circular water-filled cavity with vertical walls reaching 8 meters high and extending 47 meters below the surface.
The lake emerged through limestone collapse following decreased sea levels during the last Glacial Maximum period approximately 20,000 years ago.
The water body connects to the regional network of sinkholes in the Mount Gambier area, where indigenous communities maintained strong connections to water sources.
Metal stairs and a floating pontoon provide access to the water, while swimming requires caution due to the significant depth of 25 meters at its shallowest point.
The water periodically changes color between green and blue, mirroring the larger neighboring Mount Gambier Blue Lake's seasonal transformations.
Location: South Australia
GPS coordinates: -37.92770,140.68000
Latest update: March 26, 2025 03:26
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