Hot Water Flower Cultivation, Kusatsu Yubatake, Gunma, Japan.
The spring water pours out of the rock and is then conducted through several rows of wooden boxes. In these wooden boxes Yu no hana (湯の花) one of Kusatsu's specialties is cultivated.
Yu no hana ("hot water flower") is extracted from the hot water at the Yubatake and consists of mineral sediment (mostly sulfur), which, dried, is sold as powder by the town. Using Yu no hana, guests can experience onsen at home.
Shot in 2002, processed 2012. Not just once, not just twice.