Set back from the road with under cover picnic tables plus an emergancy supply of drinking water and a public phone. As with all supplies of unkown tank water, it should be boiled first before drinking. These rest stops are spaced around 70+ kilometres apart so you should always consider stopping for a break. Although I must admit there really isn't anything to do at this one. There is an emergency phone available.
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Why not Hire a Self Drive Campervan, and Explore Australia.