Mushroom farm in the caves

A mushroom farm is situated 22 meters under the ground in the caves near Valkenburg. SHOTS: - Workers fill big containers with horse's manure; carry the containers away and turn them over at certain places to create breeding grounds (the so-called "beds"); - the mushroom seed is sown by hand in the beds which becomes covered with fungus after a while; - the beds that are covered in fungus are cove…