Blue Lake bY aLICIA, SARA AND tAMARA
| The Blue Lake is set in the heart of an extinct volcano in Mt Gambier, South Australia. It provides water to the township of Mt. Gambier. |  |
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The reason that The Blue Lake changes colour is not fully understood, but the most sensible idea is that calcium carbonate dissolved in the water precipitates (comes out as solid) during the summer and particles scatter the sun-light |
| The Blue Lake was last active approximately 4700 years ago. |  |
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The Blue Lake has a maximum depth of 77 meters. {226
feet} The Blue Lake is as wide as 176 acres. The Blue Lake is also known as Blue Lake City to us and Warrwor to the Aborigines. |
