Victorian terraced gardens in Umpherston Sinkhole in limestone, Mount Gambier, South Australia, Australia, Pacific

The Blue Lake, a natural reservoir and one of three crater lakes at the top of Mt Gambier, an extinct volcano and town in the south east of the state, South Australia, Australia

Blue Lake, Mount Gambier, South Australia, Australia, Pacific

Logged section of a fir tree plantation by the Princes Highway, northwest of Mount Gambier, South Australia, Australia, Pacific