page_title: Düsseldorf-Unterbach
section_title: Lake Unterbach
hierarchical_section_title: Düsseldorf-Unterbach / Geography / Lake Unterbach
caption_attribution_description: Düsseldorf Unterbacher See
context_page_description: Unterbach was a local borough of Erkrath, Germany, until 1975, when it became an urban borough of Düsseldorf in a local reorganisation. A portion of the pre-1975 Unterbach remains as the borough of Erkrath-Unterfeldhaus. The eastern end of the borough of Düsseldorf-Vennhausen was attached to Unterbach during the reorganisation since it was already culturally associated with Unterbach.
context_section_description: The Lake Unterbach (Unterbacher See), in the local linguistic usage excavator hole, is a former excavator lake in the quarter Unterbach in the southeast of Düsseldorf. It is 87 hectares large and up to 13.4 m deep. Around the lake lies the protected area Eller forest, which consists to a large extent of sparse woods. Within this forest there are numerous moving and cycle tracks. In the lake are four islands proven as bird protecting area. Water does not have an above ground inlet, it is fed only by groundwater. It was created by excavating for gravel and sands between 1926 and 1973. During the World War II there was a fake airfield of the German air force put there for the deception of allied bombers. With the surface removal of gravel, groundwater flows through the lake and determines also its water level.
  The lake represents an important local recreation area for the region of Düsseldorf.
  On the north bank are also an observation deck with restaurant, a mini golf course and a small sailing boat port with boat rental business as well as a rowboat port used by schools from Düsseldorf and Erkrath.
  There is a campground on the south and there are two beaches in the north and the south, including a nude beach at the southern beach.
  The Lake Unterbach is administered by a public society, which was created on 7 February 1956 by the neighboring cities Düsseldorf, Erkrath and Hilden.
caption: Lake Unterbach
  (Unterbacher See)
  northern lakeshore
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