Arriving by train and bus

From either Düsseldorf or Cologne (Köln) main stations by local train (S-Bahn) to Langenfeld (S-Bahn runs every 20 minutes)
 
From Langefeld station by taxi (approx. 8 kilometers) to the Agricultural Center (Landwirtschaftszentrum) (bus travel not recommended)
 
From Leverkusen-Mitte station by bus (line/route 233) to the Agricultural Center (Landwirtschaftszentrum) - journey time approx. 25 minutes, or take the bus to Blee, from where the Agricultural Center is a 10-minute walk.

Have a nice trip.