Where to next Australia?

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Across
  1. 2. immature
  2. 5. a castors mode of getting around
  3. 6. fake Uluru
  4. 8. cheap shelf
  5. 12. home of the underground
  6. 13. Satan’s favourite game
  7. 15. smashed mound
  8. 16. Charlie’s trousers
  9. 17. precious stone
  10. 19. famous outback movie
  11. 21. where the simpsons live
  12. 23. lava tubes
  13. 24. Another name for tinnies
  14. 25. A place of cryers
Down
  1. 1. walk to and back
  2. 3. black birds nest
  3. 4. sick bay
  4. 7. flying town
  5. 9. Jesus guests
  6. 10. falling shearer’s workplace
  7. 11. coldest penal colony
  8. 14. Oxygen
  9. 18. nobility
  10. 19. Solid surfing
  11. 20. where Dorothy is headed
  12. 22. a pot of gold