Cobar is a town in Far West (New South Wales).
If you're coming from the NSW seaboard, the most direct way of getting to Cobar is via Dubbo, Nyngan, and the Barrier Highway. The Kidman Way passes through the town north-to-south, and can be used if you're coming from Queensland (via Bourke) or Victoria (via Griffith).
Regional Express have flights from both Sydney and Dubbo.
It's hard to get lost in a town as small as Cobar, and you can see most of it in a couple of hours - at most - of walking. There is a taxi service (02 6836 2684), if you need it.
The town has an interesting mining museum on the highway at the eatern end of town. It covers much of the history of the town and its people, and will give you an idea of how hard life was when the first settlers arrived in the 19th century.
The local tourist office supplies a free walking tour map.