Wilhelmshaven is an independent city in the northwest of Germany. It is located on the northwest coast of the Jade Bay, a bay of about 190 km² on the North Sea. The medium-sized city has 76,247 inhabitants and is a major center. Since 2006, Wilhelmshaven has been part of the Northwest Metropolitan Region, one of a total of twelve European metropolitan regions in Germany.
In the south of the city, the buildings extend to the beach of the Jade Bay
The city's history has been closely linked to the history of the German Navy since its inauguration as the "first German naval port on the Jade" on June 17, 1869. The city is now the largest base of the German Navy, and since the implementation of the Bundeswehr's stationing concept in 2011, it has also been the largest base of the Bundeswehr[2][3] and one of the largest naval bases in Western Europe. (Source: Wikipedia)
In this context, I can recommend the many museums in WHV: especially the German Naval Museum and the visitor center of the UNESCO Wadden Sea World Heritage Site.