Where is the Blue Lake?
Q: Where is the Blue Lake?
A: The Blue Lake is in Mount Gambier, South Australia.
Q: What type of formation is the Blue Lake?
A: The Blue Lake may be a dormant volcanic crater.
Q: How many crater lakes are there on Mount Gambier?
A: There are four crater lakes on Mount Gambier.
Q: Why does the Blue Lake change color?
A: The Blue Lake changes color from grey to bright blue due to changes in water table.
Q: When was the most recent volcanic eruption on the Australian mainland?
A: If the youngest date is correct, the most recent volcanic eruption on the Australian mainland was a little before 6000 years ago.
Q: What is the average depth of the Blue Lake?
A: The average depth of the Blue Lake is 72 meters but reaches 77 meters in some places.
Q: What has been discovered in the Blue Lake during diving exploration?
A: In the Blue Lake, diving exploration has discovered a fresh water sponge species, other invertebrates, and "The stromatolite field," hollow rock formations on the north-eastern edge at a depth of 40 meters. In 2008, core samples from the calcite-silt covered lake bed were brought up, and the water temperature on the lake bed was measured at 14 degrees Celsius (57 °F).
