Blue Lake - Mount Gambier, Australia
Posted by: 
ThePacman
S 37° 51.000 E 140° 46.900
54H E 480792 N 5810805
The Blue Lake is a crater lake in Mount Gambier, well known for changing to a bright blue colour during the summer months.
Waymark Code: WMNWKD
Location: South Australia, Australia
Date Posted: 05/12/2015
Views: 13
Blue Lake is located in an extinct volcano that last erupted about 4,500 years ago.
It is approximately 70m deep and over 1000m in length.
The lake has a capacity of 36000 megalitres, and is used as the water supply for the town of Mount Gambier.
No one has fully explained the phenomenon of the bright blue colour, but it is thought to be possible due to the formation of calcium carbonate crystals at about 20 degrees Celsius, which then scatter blue light waves.
Lake Type: Crater lake
Coordinates location: Lookout
Max. Length: 1087m
Max. Width: 657m
Max. Depth: 77m
Surface area: 70ha
Parking / trail head: S 37° 50.596 E 140° 46.406
Website: [Web Link]
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