Dondorfer See, Nature reserve in Hennef, Germany.
The Dondorfer See encompasses 43 hectares of water surface with dense stands of reed, silver willows, and black alders along its shores.
The area transformed from a sand extraction site near the Sieg River into a designated nature reserve in 1991, preserving water ecosystems.
The reserve functions as an environmental education center, demonstrating the importance of wetland preservation in North Rhine-Westphalia.
A 2.8-kilometer circular hiking trail starts near Dondorf village, offering multiple observation points for wildlife and water birds.
The lake features artificial nesting platforms that support eight breeding colonies of river terns, among only 130 sites in North Rhine-Westphalia.
Location: Hennef
Inception: 1991
Elevation above the sea: 69.6 m
GPS coordinates: 50.76970,7.32306
Latest update: March 3, 2025 00:16
Ummigsbachbrücke
4.9 km
Blankenberg Castle
2.6 km
Schloss Allner
1.9 km
Kurtheater Hennef
3.4 km
Kloster Merten
5.2 km
Zur schmerzhaften Mutter Gottes
1.9 km
Burg Merten
5.1 km
Kloster Seligenthal
4.5 km
Allner See
2.4 km
Kloster Geistingen
3.5 km
Haus Attenbach
1.7 km
Kloster Bödingen
1.9 km
Rennenburg
3.4 km
Sankt Simon und Judas
3.2 km
Holy Cross Church (Süchterscheid)
5.1 km
St. Agnes (Merten)
5.3 km
Silikatfelsen an der Sieg
5.3 km
Rennenbergkreuz
4 km
Synagoge (Geistingen)
3.8 km
Stachel-Berg
4 km
Antoniuskapelle (Oberauel)
2 km
Auf der Scheidthecke und Hoverbachtal
5.3 km
Siegaue
1.1 km
Ahrenbachtal und Adscheider Tal
3 km
St. Mariä Himmelfahrt (Bröl, Hennef)
2.5 km
Eisenbahnbrücke über die Sieg bei Bülgenauel
4.1 km
Eisenbahnbrücke über die Sieg bei Blankenberg
2.4 km
Eisenbahnbrücke über die Sieg bei Bülgenauel
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