The Daio Wasabi Farm 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.
The farm has been attractively developed for tourists with walking trails between the fields. Within the farm stands the Daio Shrine, which enshrines the spirit of an ancient local hero, Hachimen Daio, after which the farm has been named and who is considered the farm's protector. Nearby the shrine is also a small cave related to the local hero's legend.