Kamikochi Nagano japan

The Daio Wasabi Farm (大王わさび農場, Daiō Wasabi Nōjō) in rural Azumino City near Matsumoto is one of Japan's largest wasabi farms and a popular tourist destination. The farm has multiple large fields with a meticulously maintained network of small streams that constantly provides each wasabi plant with clear, flowing water from the Northern Alps. Only under such pristine conditions is wasabi cultivation possible. From May to October, the fields are protected from the sun by black tarp sheets.