The area, which consists of
ponds,
reed beds,
wet meadows and small groves of trees, was originally a bay in the
Baltic Sea before a
spit developed and separated what became an inland lake from the sea 400 years ago. In the 19th century the area was drained by engineer and surveyor, Gustav Kröhnke, and numerous
fish ponds were created over an area of . The drained lake was used for a long time for agricultural purposes before it was purchased in 1975 by the German Society for the Protection of Birds (
Deutscher Bund für Vogelschutz) and the
district of Ostholstein. NABU bought the site in 1976 and, by 1977, it had been designated as a
nature reserve. This secured the protection of breeding and migrant bird species. In order to optimise the habitat for these birds, landscaping measures were carried out in several areas. The reserve also took part in a LIFE project for improving the protection of the Baltic Sea lagoons, cooperating with Danish and Swedish partners. The head of NABU's Wallnau Waterbird Reserve since March 2008 has been Malte Siegert. In March 2010 NABU Wallnau was given responsibility for three other nature reserves on Fehmarn, thus creating a linked conservation system on the island. One reserve lay just to the north of NABU's existing nature reserve of Wallnau/Fehmarn. The two others are located between the Wallnau Nature Reserve and the NABU's
Krummsteert-Sulsdorf Wiek / Fehmarn Nature Reserve. The peninsula of
Spitzenort and the islands in the
Lemkenhafener Wiek, which are home to inter alia a large colony of
herring gulls, will also be looked after by NABU Wallnau in the future. The reserves fall under the EU's
Birds Directive and are
Special Areas of Conservation in the Europe-wide conservation network known as
Natura 2000. In 1970 the Love and Peace Festival, a
music festival lasting several days took place on the edge of the present NABU reserve. This event was the last one at which
Jimi Hendrix performed before his death. Today, a memorial stone commemorates the event. == Wallnau / Fehmarn Nature Reserve ==