Holtenau Lighthouse is one of the most beautiful in Germany, located on the north bank of the entrance to the Kiel Canal. It is an octagonal tower built of bricks, distinguished by its striking southern entrance, in a way that white and red colors blend together. The tower also includes a small room on its last floor that is used for celebrations and various occasions such as weddings. Surrounded by a wide green area planted with many plants and trees, it also offers a charming view of the sea and the ships anchored in the port.