noun
open farm event; open farm day
A public event where a farm opens its grounds to visitors, often for tours, hands-on activities, or direct sales.
from English open farm
来週、地元のオープンファームで野菜の収穫体験ができる。
Next week, you can try vegetable harvesting at the local open farm event.
オープンファームの日には、普段は入れない牧場を見学できる。
On open farm day, you can tour areas of the ranch that are normally off-limits.