🇵🇱 Kwidzyn, Poland

Kwidzyn is a city located in northern Poland with a population of around 38,000 people. While not a major maritime hub, the city is situated on the Nogat River, which connects to the Vistula Lagoon and ultimately the Baltic Sea. This could be of interest to seafarers looking to explore the surrounding waterways. However, Kwidzyn is primarily known for its historical attractions, including a medieval castle and Gothic cathedral.