The lake’s development has exceeded all expectations; plants that have not been seen in Denmark since 1975 have been observed in the lake. The restoration has been a success.
Filsø was once one of Denmark’s largest lakes, with an area of approx. 3,000 ha. Through centuries of drainage, the lake shrank more and more until only a fraction of the original lake remained: Fidde Sø in the northeastern corner.
In 2010, the Aage V. Jensen Nature Foundation bought Filsø and restored 915 ha. of the lake. Together with Fidde Sø and Søvigsund, the new lake area totals 1,030 ha.
Filsø is frequently visited by guests from both near and far. Many are interested in the lake’s history and its development after the nature restoration. Several birdwatching towers have been built in the area. From the car park at Nørre Enge, there is easy access to the birdwatching tower at Petersholm for wheelchair users. There are also several marked trails in the area.
There are not only birds at Filsø. Denmark’s largest population of red deer lives in the dune plantations between Nymindegab and Blåvandshuk, some of them on Filsø’s lands. There is a good chance of seeing them from Petersholm Tower, where herds of up to 400 animals may gather.
Havørnen ses ofte ved Filsø og hvert år på Ørnens Dag samles mange på Dæmningsvejen eller Langoddetårnet for at spejde efter ørnen.
Ørnene kan ses flyve over en af søerne eller de kan spottes siddende på en af øerne nord vest for Langoddetårnet.
