Fehmarn
Fehmarn is an island and municipality in the Ostholstein district of Schleswig-Holstein, Germany, situated in the Baltic Sea approximately 18 km south of the Danish island of Lolland across the Fehmarn Belt. Covering an area of 185.5 km², it ranks as Germany's third-largest island.[1][2] The municipality, which encompasses the entire island, had a population of 13,218 as of December 2023.[2] Connected to the mainland by the 963-meter Fehmarn Sound Bridge since 1963, Fehmarn functions as a vital transport hub, hosting the Puttgarden ferry terminal for passenger and vehicle services to Rødby, Denmark, and serving as the German endpoint for the under-construction Fehmarnbelt Tunnel—an 18 km immersed tube structure designed to link it directly to Lolland, with operations anticipated to commence in 2029.[3][4] The island's economy relies heavily on tourism, drawn by its 78 km of sandy coastline, chalk cliffs, and over 2,200 annual hours of sunshine, exceeding that of southern European destinations like Nice.[5] Historically, Fehmarn has been a strategic maritime location, with settlements dating back to prehistoric times and medieval fortifications such as the ruins of Glambæk Castle.[3] The impending tunnel, funded primarily by Denmark at an estimated cost of €7.4 billion, promises to reduce travel time between Scandinavia and Central Europe from 45 minutes by ferry to 7 minutes by road or rail, though construction faces technical challenges including seabed preparation and vessel delays that may impact the timeline.[4][6]