During the 20th century many underground quarries were used as mushroom farms because the rent was very cheap and the climate was nearly perfect. But due new techniques nowadays there are only few underground mushroom farms left. This one is one of the very few remaining places in Belgium were mushrooms are cultivated underground. However it’s on a very small and non-commercial scale. The farmer, who is around his 70’s, has been cultivating mushrooms for decades. Although he’s retired he still has a few mushroom beds for fun.