Olhörn lighthouse is a small lighthouse

Lighthouse

A lighthouse is a tower, building, or other type of structure designed to emit light from a system of lamps and lenses or, in older times, from a fire, and used as an aid to navigation for maritime pilots at sea or on inland waterways....

 on the German

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 North Sea

North Sea

In the southwest, beyond the Straits of Dover, the North Sea becomes the English Channel connecting to the Atlantic Ocean. In the east, it connects to the Baltic Sea via the Skagerrak and Kattegat, narrow straits that separate Denmark from Norway and Sweden respectively...

 island of Föhr

Föhr

Föhr is one of the North Frisian Islands on the German coast of the North Sea. It is part of the Nordfriesland district in the federal state of Schleswig-Holstein. Föhr is the second-largest North Sea island of Germany....

 in Schleswig-Holstein

Schleswig-Holstein

Schleswig-Holstein is the northernmost of the sixteen states of Germany, comprising most of the historical duchy of Holstein and the southern part of the former Duchy of Schleswig...

.

The lighthouse is located on the southeastern corner of the island of Föhr, inside the town of Wyk auf Föhr

Wyk auf Föhr

Wyk auf Föhr is the only town on Föhr, the second largest of the North Frisian Islands on the German coast of the North Sea. Like the entire island it belongs to the district of Nordfriesland...

 in the Nordfriesland district. It is located on a shallow geestland

Geestland

Geest is a type of slightly raised landscape that occurs in the plains of in Northern Germany, the Northern Netherlands and Denmark. It is a landscape of sandy and gravelly soils, usually mantled by a heathland vegetation, comprising glacial deposits left behind after the last ice age during the...

 ridge overlooking the southern beach of Wyk.

It was erected in 1952 to replace a light beacon from 1892. The tower is 8.6 m tall with a focal height of 10 m above mean high water. It has a near square shape and was built of massive masonry that was encased by reddish brown bricks. On the gallery there is the lantern room made of metal; it is painted white. The automated lighthouse serves as a cross light for navigation in the Norderaue tidal channel between the mainland port of Dagebüll

Dagebüll

Dagebüll is a municipality located at the west coast of Schleswig-Holstein in the Nordfriesland district, Germany. Today's Dagebüll was created in 1978 as a merger of the municipalities of Fahretoft, Juliane-Marien-Koog and Waygaard...

 and the islands of Föhr and Amrum

Amrum

Amrum is one of the North Frisian Islands on the German North Sea coast, south of Sylt and west of Föhr. It is part of the Nordfriesland district in the federal state of Schleswig-Holstein...

. As such it is a sea mark

Sea mark

A sea mark, also seamark and navigation mark, is a form of aid to navigation and pilotage aid which identifies the approximate position of a maritime channel, hazard and administrative area to allow boats, ships and seaplanes to navigate safely....

 and also a minor daymark

Daymark

A daymark or a day marker is a structure such as a tower constructed on land as an aid to navigation by sailors. While similar in concept to a lighthouse, a daymark does not have a light and so is usually only visible during daylight hours...

.