🇫🇷 Sedan, France

Sedan is a city in France with a population of around 17,000 people. While it is not a coastal city, it is located on the banks of the Meuse River, providing access to inland waterways. Sedan is known for its magnificent Château de Sedan, the largest fortified medieval castle in Europe, which could be of interest to tourists and history enthusiasts. However, it does not have any notable ports, shipyards, or factories related to the maritime industry.