The Aquifer Tour gave us a chance to see the Blue Lake at close range and learn about the lowering water table and the engineering of Mt Gambier’s water supply. Gary, the guide was a fountain of knowledge.
Afterwards, we did the Mountain Walk around the volcanic rims of Valley Lake and two other craters. This lake isn’t used for drinking water, so boating and waterskiing are popular. The walk took us to Centenary Tower, built to mark 100 years since Captain Grant in the Lady Nelson, sighted and named Mt Gambier. It afforded expansive views of the craters, town and surrounding farmland. 365 steps took us to a lower level and the total journey took two hours, including a break for ice-cream at the Tower.