🇵🇱 Olsztyn, Poland

Olsztyn is a city in Poland with a population of around 175,000 people. It is located in the northeastern part of the country, surrounded by lakes and forests. While Olsztyn does not have any ports or shipyards, it may still be of interest to seafarers and shipowners as it offers a variety of cultural attractions, including the Olsztyn Castle and the Museum of Warmia and Mazury.