🇨🇭 Oberentfelden, Switzerland

Oberentfelden is a small municipality in Switzerland with a population of approximately 6,000 people. While it is not a coastal city, it is located near the Aar River, which is navigable for small boats. It does not have any ports or shipyards, but it may be of interest to seafarers, shipowners, or crewing companies due to its proximity to major Swiss cities such as Zurich and Basel, which have international airports and transportation hubs.