The Meßdorfer Feld Nature Preserve offers about 5 km of pleasant paths around fields and farms. It’s located in the Messdorf area, just west of central Bonn. It’s a combination of paved and gravel paths, and the terrain is quite open. A good place to start is at the running track, off Einsteinstraße, near the Soccer Sports Complex.

There’s a parking lot near there, and transit access via Helmholtzstraße.