Wednesday night John and I went to one of the local Rotary meetings. They have 3 clubs here. This particular club is the oldest in town and formed in 1928. They were up to meeting number 3989! They have about 30 members. A very friendly club. It was held at the local RSL club. We must start going to the RSL’s more often as generally you can get well priced meals and drinks. Had a go on the 1c pokies and lost my $1.00 (damm!). Following this we revisited Umpherston Sinkhole to see the brushtail possums feeding at night. Saw a couple, they are tame to a point particularly if you have food for them (not a good thing). The baby was cute and was keen to jump on mom’s back when she climbed away.
Thursday we did a tour to Blue Lake. Blue Lake is a dormant volcano with the crater bottom sitting below the water table. The lake supplies Mount Gambier with its water. The water is pristine, they only add minimal chlorine too get rid of any bacteria that may be present. The lake is 1km by 600m wide and is 70m deep. It holds 36,000ML and approx. 10% is drawn per annum. The water temperature ranges from 10-20 degrees and averages at 16. The most amazing feature of this lake is how blue it is during the summer months. There have been many theories and the latest scientific explanation is that during winter when the water is cooler, calcium carbonate is more dense and is suspended closer to the surface turning the water a blue/grey colour whereas in summer as the water temperature warms the carbonate can move down towards the bottom leaving more pure water towards the top, hence its blueness.
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