Little Blue Lake
A sinkhole swimming hole
A deep, intensely blue water-filled sinkhole south of Mount Gambier, a popular spot for a bracing freshwater swim.
A swim in a sinkhole
The Little Blue Lake is a flooded limestone sinkhole between Mount Gambier and Mount Schank, its water an arresting deep blue. A platform with steps and a ladder gives access for swimming, and on a hot day locals leap from the rocks into the cold, clear water. It's a free and slightly wild alternative to a beach - though the water is deep and chilly, so it suits confident swimmers.
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Last verified 8 August 2026 · source: South Australia Tourism (southaustralia.com)
Within a short drive
Places within 5km of Little Blue Lake
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Little Blue Lake - frequently asked questions
Can you swim in the Little Blue Lake?
Yes. Unlike the main Blue Lake in Mount Gambier, the Little Blue Lake near Mount Schank is a flooded sinkhole that is open for swimming, and it is a popular freshwater spot in summer. A platform and steps provide access to the deep, clear water.
How deep is the Little Blue Lake?
The Little Blue Lake is a deep, water-filled limestone sinkhole. The water is very deep and cold, so swimmers should take care, as there is no shallow shelving entry.
Sources
- South Australia Tourism (southaustralia.com) (accessed August 2026)
Image credits
- Little-blue-lake-tasmania-cameron.jpg by Shitol roy , CC BY-SA 4.0 via Wikimedia Commons