Hallett Cove is one of South Australia’s foremost natural science treasures. Concepts of superposition of strata, unconformities, folding and faulting of sedimentary rocks are clearly displayed. In 1877 Professor Ralph Tate discovered evidence of ancient glaciation in the form of polished and striated rock surfaces on the cliff tops and the site has attracted scientific attention ever since.
The Limestone Coast is abundant with sinkholes. This one is popular with tourists who visit Mt Gambier. The well maintained gardens are a feature as you walk down the staircase to the bottom of the sinkhole.