Mount Gambier: The Blue Lake

The Blue Lake in Mount Gambier is one of the most impressive natural formations that we’ve ever seen at The City Lane. It is one of 4 crater lakes (today only 2 remain) that were formed by an eruption of the volcano from which the town Mount Gambier was named after several thousand years ago and is one of Mount Gambier’s main sources of water.

The lake is a vibrant, deep blue from December through to March, and a steel grey colour for the rest of the year.

blue lake mount gambier south australia

The exact cause of this colour changing process is still being debated, however the general consensus is that it’s most likely due to a warming of the surface layers of the lake during the summer to around 20°C. This causes calcium carbonate to precipitate out of solution and enables micro-crystallites of calcium carbonate to form. This result is a scattering of the blue wavelengths of sunlight.

What is certain is that the effect is stunning. Pictures can’t convey just how amazingly vibrant the colour of the lake is in reality.

blue lake mount gambier south australia

blue lake mount gambier south australia

There is a  3.6 kilometre road and walking track around the circumference of the Blue Lake which provides visitors with several vantage points from which to view the Blue Lake.

blue lake mount gambier south australia

blue lake mount gambier south australia

The Blue Lake in Mount Gambier is one of the most unusual and beautiful natural sights that we have visited in Australia and we highly recommend taking the time to check it out if you’re in the area.

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Paul
Paul
Paul founded The City Lane back in 2009 as a place to share photos of his travels around Europe with friends and family. The City Lane might have changed quite a lot since those early days but one thing that’s remained constant is Paul’s passion for food, travel and culture, and a desire to photograph and write about his experiences. Paul has a strong inquisitive nature that drives him to look beneath the surface in order to discover what really makes a city and its people tick, and what better way to do this than over a good meal or drink, with a city’s locals, at places that people who live in that city actually frequent. Paul is also a co-host of The Brunswick Beer Collective, a podcast that may or may not actually be about beer.

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