Little Blue Lake, Natural sinkhole cave in Mount Schank, South Australia
Little Blue Lake is a water-filled sinkhole with steep walls descending into a deep cavity beneath the limestone. The lake has a circular shape and sits within the Mount Schank area.
The lake formed roughly 20,000 years ago when sea levels dropped and limestone collapsed inward. This process created the deep cavity that now holds water.
The lake sits within a network of sinkholes that held deep meaning for indigenous communities throughout history. Local people have always valued these water sources as central to their connection with the land.
Metal stairs and a floating pontoon make it easy to reach the water safely. Swimmers should be aware that the lake is quite deep and requires careful entry.
The water shifts color between blue and green with the seasons, mirroring the changes seen in the nearby Mount Gambier lake. Visitors often return at different times to catch these shifting hues.
The community of curious travelers
AroundUs brings together thousands of curated places, local tips, and hidden gems, enriched daily by 60,000 contributors worldwide.
