Basically Dover developed into a Port as it is the nearest point to France.
It's the nearest port to England, and so the busiest passenger port in France. Historically, it was England's beachhead in France, until Mary Tudor went and lost it.
The Le Havre is the nearest seaport to Paris. Paris is the capital of France and has a population of 2.2 million people.
What is the nearest sea port to detroit
what is the nearest sea port to geneva
nearest sea port to iowa
nearest port to puerto barrios
Carthage was the nearest port in North Africa to Rome.
The nearest international sea port to Riyadh is Ad Dammam.
Your question needs to specify nearest to where or what.
Marseille is the busiest port in France, and the busiest port on the Mediterranean sea, and the third-busiest in Europe.
The nearesst still working port is Port Talbot, in Glamorgan