Day 14: Travel east along the Warrego Highway to Mitchell where you can relax in the thermal mineralised waters of the Great Artesian Spa. The aquatic centre offers two large pools, one warm and one cool, of natural artesian water – a great spot for the kids to enjoy. Next head to Roma, often referred to as the gateway to the Outback and home to the Southern Hemisphere’s largest saleyards. Time your visit to arrive in Roma on a Tuesday and you can experience the excitement and sounds of a cattle sale and meet some of the local graziers and stock agents. For a terrific insight into Australia’s Oil and Gas industry, take in The Big Rig’s spectacular night show, an entertaining outdoor sound and light presentation of early 20th century oil and gas exploration.