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stuff to do in.cologne

Nature conservation

2 places in Cologne

Butzbach© Gordito1869 · CC BY 3.0

Butzbach

A roughly 5.8 km sandy stream that rises in the Wahner Heide and seeps away in the Grengel Bieselwald – part of a protected landscape area in southern Cologne.

Kiesgrubensee Gremberghoven© Mabit1 · CC BY-SA 4.0

Kiesgrubensee Gremberghoven

since 1989
3.2(6)· Google

A nature reserve around a former gravel pit lake in Cologne-Humboldt — nesting ground for sand martins, kingfishers, and great crested grebes.

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