🇨🇭 Heiden, Switzerland

Heiden is a small town located in eastern Switzerland with a population of around 4,500 people. While it is not a coastal city, it is situated near Lake Constance, which offers opportunities for seafaring activities. The town does not have any major ports, shipyards, or factories producing ship parts, but its proximity to the lake makes it a potential base for recreational boating and water sports.