Blue Lake

Mount Gambier, South Australia, Australia

Located in the town of Mt Gambier in South Australia.  This large lake is actually in the crater of an extinct volcano and is the town water supply.

From November to the end of March, the water colour is a mysterious turquoise colour then reverts to a deeper blue during the winter season. 

The reason is not exactly known but thoughts are that it is due to the warming of the surface layers of the lake during the summer that causes calcium carbonate to precipitate out. This then results in the reflection of  blue wavelengths of sunlight.

Great views from various vantage points around the rim and you can also see the pumping station.

Very close to the town centre and parking is available. There is a visitor centre.

You can walk around the lake.

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