Kasterer See, Lake in Kaster, Bedburg, Germany

Kasterer See is a lake in Bedburg created from land reclamation after mining operations, now serving as an important water habitat. The shoreline is framed by wooded banks, with visitor access on the southwestern side while other areas remain protected for water birds.

The lake formed from reclamation of brown coal mining areas and was completed in the 1980s as the region reshaped its landscape. This transformation from industrial land to natural habitat shows how former mining sites can become living spaces again.

The lake takes its name from the Kaster district of Bedburg, not from any dairy. Today the Sportfischereiverein Erft-Gillbach e.V. manages it as an angling water, and the fish stock includes eel, perch, chub, pike, carp, roach, rudd, tench and catfish.

The southwestern shore is the main visitor area with parking and easy paths to walk along the water. Be aware that much of the shoreline is closed to protect nesting and resting areas for birds, making this a place for patient observers.

The lake was dug in the former Frimmersdorf open-pit mine and finished in 1984; it is 1 km long, 125 m wide and 5.20 m deep. Its wooded island, the Kasterer Höhe, was planted with elms, a tree species considered endangered.