Jenolan Caves

The underground limestone Jenolan Caves is one of the most extensive, accessible and complex systems in the world – a vast network that’s still being explored today. Named Binoomea (Dark Places) by the Gundungurra tribe, the caves took shape 400 million years ago. White explorers first passed through in 1813. In fact, early European cave enthusiasts were remarkably forward thinking – the Jenolan Caves area was protected from 1866. One cave has been open to the public since 1860, and nine more are open today. Cave snobs will not be disappointed.

Classical concerts (1300 76 3311, 6359 3911; www .georgcello.com; adult/child $60/35; 4pm Sat twice monthly) in the caves are a sonic revelation. Concerts are usually held on the third and fourth Saturdays of the month – book well ahead for all performances, as they sell out quickly (limited to 75 cello fanatics).