It will hop, if it is called the materials of beer. Iwanai is the ground that wild hop was discovered for the first time in Hokkaido.
Iwanai is ground of the hop discovery that is the raw material of the beer. The American pioneer Anticell discovered a wild hop for the first time in Hokkaido in 1871. the beer came to be brewed in Hokkaido starting with it. There is a monument in the site in the hometown pavilion. The hop is sideways planted.