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Port Williams Seaplane Base, United States

2. Gulf Of Alaska

3. North Pacific Ocean

4. Golfo De Panamá Gulf

5. Panama Canal

6. Caribbean Sea

7. North Atlantic Ocean

8. Strait Of Gibraltar

9. Alboran Sea

10. Mediterranean Sea

11. Damietta Branch River

12. Nile River

13. Ismailiya Canal River

14. Suez Canal

15. Suez Canal River

16. Gulf Of Suez

17. Red Sea

18. Gulf Of Aden

19. Arabian Sea

20. Indian Ocean

21. Timor Sea

Port of Darwin, Australia

Distance: 21043 nautical miles