Across
- 5. Scottish island with high sunshine records
- 7. Massive rock monolith in Australia
- 9. Capital of Nauru
- 10. World's oldest space launch facility
- 13. Marsupial unique to Australia
- 15. Small Pacific island nation vulnerable to sea rise
- 16. Welsh island of old spiritual significance
- 18. Caribbean island with shortest commercial runway
- 19. Tallest dam in the U.S.
- 20. New Zealand town known for whale watching
Down
- 1. Site with ancient rock paintings in Botswana
- 2. Atoll used for nuclear tests
- 3. Near site of the Tunguska event
- 4. World's largest tropical forest national park
- 6. Largest salt lake in Australia
- 8. One of the highest lakes in the world
- 11. Oceanic point furthest from land
- 12. Southernmost point of Europe
- 14. Shrinking sea in Central Asia
- 17. Antarctic research station over the coldest spot