Ports.com

London Thamesport, United Kingdom

2. North Sea

3. English Channel

4. Bay Of Biscay

5. North Atlantic Ocean

6. Strait Of Gibraltar

7. Alboran Sea

8. Mediterranean Sea

9. Damietta Branch River

10. Nile River

11. Ismailiya Canal River

12. Suez Canal

13. Suez Canal River

14. Gulf Of Suez

15. Red Sea

16. Gulf Of Aden

17. Arabian Sea

Port of Karachi, Pakistan

Distance: 6924 nautical miles