Tunnel Hill Mushrooms might be Australia’s most atmospheric food producer, literally growing the future inside a cold, abandoned Tasmanian train tunnel. In a world obsessed with glasshouses and steel-and-LED vertical farms, this one goes the other way: deep underground. The result? A quiet, almost eerie form of ambient agriculture turning a 19th-century sandstone tunnel into a precision-engineered microclimate for gourmet and medicinal fungi.
